He didn't have a hunchback whatever word you want to call it. You can't just keep making wild statements that not a single historian or archaeologist or expert agrees with and then when contradicted by the facts and evidence, just say "oh but I meant this." There isn't a single reference to his "hunchback" that was written during his lifetime, it was all propaganda invented after his death.
People who examined his skeleton has said his scoliosis would have been either invisible or barely visible when clothed, which is backed up by the fact that not a single person who ever laid eyes on him mentioned him having any kind of hunch or hump, and the vast majority of people who saw or met him and wrote physical descriptions didn't notice anything remotely out of the ordinary about his appearance.
How do you explain the fact people who actually saw him didn't notice anything unusual about his appearance?
How do you explain the fact he was so popular and beloved during his younger years?
How do you explain the fact that even after he took the throne and rumours started to spread that he was a child killer, none of the people who hated him/defamed him mentioned the "deformity" that you claim made him widely hated in the first place?
I'm sorry you haven’t read enough about the discrimination due to the lingering medieval religious and superstitious attitudes
I'm disabled and a disability activist and I literally have written peer reviewed journal papers about the history of attitudes towards disabled people. Please don't be condescending. Obviously the Tudors tried to weaponise lingering Medieval ableism in their anti-Richard propaganda, by inventing the lie that he had a hunchback as a way to demonise him. The fact Medieval England was very ableist and saw disabled people as Demonic disproves your claim, not the other way around. It's almost impossible that someone as beloved and popular as Richard (when he was younger) could have been severely visibly disabled, and it's absolutely beyond comprehension why, during the smear campaign of the last two years of his life, not a single person mentioned or invoked this sign of being an "Imp of Satan." Surely if you were trying to launch a smear campaign against a visibly severely disabled person in an era where visible disability is considered a mark of Satan, that's the very first thing you'd use? Yet none of Richard's enemies ever mentioned it. None of the smear campaigns or people calling him a child killer ever mentioned it. Why on earth not?
what I mean about him being viewed with suspicion as an imp of Satan and so on.
But he wasn't viewed as an Imp of Satan during his lifetime. There's not a single reference to anything remotely like that written during his lifetime. There's just no evidence to suggest that existed during his lifetime. It's something Shakespeare and other Tudor agents invented long after his death.
usually propaganda is built on a complete lie. In this case the propaganda is built on a truth, Richard III was a crookback as he had severe scoliosis.
No, that's simply not true at all, and honestly I find that quite offensively ignorant. I'm an Orthodox Jew who lectures and writes primarily on how minorities are demonised, and I've written and lectured extensively on the history of antisemitic propaganda and how 20th/21stC propaganda has its roots in medievalism. It's just silly and reductive to say "propaganda is usually based on complete lies." It's actually very rare for propaganda to be based on lies pulled out of thin air. Propaganda is nearly always based on elements of truth that are then twisted and exaggerated. For example, antisemitic propaganda even in the 20th and 21stC is heavily based on tropes around money and the perception of Jews as money hoarding, which dates back to the Middle Ages when Jews were forced into becoming money lenders which resulted in Christians owing money to Jews. Over the centuries the history of violent Jewish expulsion led to a strong cultural tradition (which my family personally practices) of Jews keeping their money in gold so it can be grabbed quickly if you have to flee, which unfortunately accidentally reinforced this trope. You can draw a direct line between the history of Medieval Jewish money lending and Nazi propaganda in WWII. Obviously the trope of "Jews hoard all the money" is horrible and antisemitic and not at all true, but it's not like someone just randomly decided to invent a lie out of thin air one day - that propaganda evolved out of an historical situation where lots of Christians owed money to Jews and were having to pay money to Jews, and were angry about it - to claim otherwise is very dangerous since it ignores and downplays both the history and the mechanisms for how propaganda is created and spread.
Similarly, during slavery the USA actively created racist and anti-black propaganda designed to portray black people as having lower IQs than white people, as brutish, as child-like, as physically very strong, as a way to justify slavery. Now obviously that's racist and untrue - of course black people aren't less intelligent than white people! But you have to examine the roots of these propaganda tropes to be able to fight them, because those propaganda campaigns are still responsible for a lot of racism in the USA today. For example, the trope that black men are physically very strong and athletic (a racist trope that still exists to this day): The reason this propagada trope exists is because trans-Atlantic transportation is brutal, being enslaved is brutal; simply put, slaves that were not physically strong would have died. Only the strong ones would have lived. So while it's clearly not true to say "all black men are strong and athletic", it's not like someone just invented a total lie out of thin air - there's historical reason behind the creation of that trope and why people believed it. Ditto the propaganda of black people as stupid or childlike - this was because slaves were obviously denied any access to education.
In Richard's case, Shakespeare and the others exploited the fact he had a spinal issue causing one shoulder to be slightly higher, and massively exaggerated it. No "coincidence" involved; propaganda nearly always involves looking at someone's perceived weak spots then figuring out how to twist or exaggerate those things. Obviously Richard did have scoliosis, no one is denying that, and he did factually have one shoulder higher than the other that people who were close to him noticed and wrote down. So that was a very easy thing for Tudor propaganda to latch onto and twist. But the fact there's not a single contemporary source mentioning any hunchback, the fact the vast majority of people who saw Richard didn't notice anything unusual - that's strong evidence that Shakespeare et al invented the perception of Richard as a twisted hunchback "Imp" as Tudor propaganda by taking a small piece of historical fact and exaggerating it to the maximum.
*Richard III was not well loved by the general public south of York. A well loved king doesn’t end up betrayed by his closest friends"
But he was well-loved in the North, where he actually lived. Surely if his reputation was based on hatred and revulsion at his body/physical appearance, he'd be more hated in his own area where people actually knew and saw him with their own eyes? And the second part just doesn't make any sense, are you claiming that if someone is popular when young that can never change ever? That if a Medieval King is popular with the public, that magically inures them against enemies or plots? Because there were tons of Kings who were very popular and they all had enemies and plots. Anyway Richard's popularity declined after he drove Elizabeth Woodville into sanctuary, killed her family and seized their lands, kidnapped the rightful heir and had him declared illegitimate, and after rumours swirled that he was a child murderer, rumours that he murdered his wife, rumours that he intended to marry Elizabeth of York, and the perception that he'd do anything to keep the throne that was not rightfully his. What happened at the end of his live after he lost a battle doesn't magically debunk the idea that he was popular when young.