This in a nutshell.
Lots of people wished them well - but then they went on Oprah, told a load of half-truths (at best), made allegations which couldn't be proven either way but sounded extremely unlikely (such as Harry not knowing or being able to access mental health support, despite being a patron of mental health organisations), and so on. Any time proof is offered that they're not telling the truth, we're told it's "their truth". Which is bollocks. At best, they've deliberately misled people to garner sympathy, at worst they've lied outright.
Meghan lied in the court case about something that there's absolutely no way she forgot, and had to apologise to court. It just demonstrates that she has a very loose relationship with the truth and was the one time she couldn't get away with claiming it as "MY truth" because she needed to tell the actual truth, and failed.
They've continued to trade on the narrative that they are the victims and the RF are terrible. They've made a lot of how awful the press is - but they're extremely happy to throw Harry's family to the press to achieve their own end. FWIW, I completely accept the press are shitbags - but to know this, and STILL slate your family in the way that they have, knowing how the press will then hound family members - it's extremely low.
They preach kindness and acceptance - but have shown anything but to Harry's family. Her own family is a hot mess, and they all seem as bad as each other tbh.
If they just left the RF alone, stop slagging them off or hinting about the "pain" that they were caused by the RF, lots more people would feel positively towards them. They're just both displaying many self-absorbed, narcissistic traits and it's hard to summon up a lot of sympathy for a situation that they not only created, but perpetuated.
And just as an example of that - they were in the country, knew that the queen was very poorly - as we all did, presumably they knew more as Harry "talked to her regularly.... - but chose not to go and see her on their PR trip. They rarely come to the UK. It's shitty of them not to take time to see her. Harry lost the chance to see his grandma before she died. No excuse - but demonstrates how it's all me, me, me with the pair of them.