No, indeed, they have not the faintest idea of how, yes!, crass any of it is!
I reckon I would have wound up a republican either way - but what most certainly didn't help was being the exact same age as Prince William!
Born and raised rural working class/ woeking poor here. First in the family to ever get any A-levels. To ever graduate from - strike that! Even get INTO - university.
Supposed high-flying corporate executive in a supposedly "no-one would have thunk - she was just a girl from just a farming village" position now! I speak at my old school's graduation ceremony with shocking regularity - because they have nothing much better to offer than "village girl who made partner".
There isn't a day in my life that the thought "yes, I've worked hard, yes, I am reasonably talented - but SO MUCH OF THIS has, literally, just been sheer, dumb luck and being in the right place at the right time" doesn't cross my mind. Doesn't make me feel undeserving because, in addition to the raw talent and daily 12+ hours it had cost me there was also just some ... pure chance!
If this is you, and you happen to share William's birthday, you can't help but wonder: "does he feel as undeserving, as 'sometimes out of his depth' as I do?", "does he lie awake at night frightened that tomorrow they will all find out he's nothing but an imposter who doesn't belong, and it'll all be over? If so: what happens then?"
The plural of "anecdote" isn't "data" and my personal insecurities are just that. Still, it irks me and upsets my sense of fairness that, objectively speaking, the answer is "statistically speaking, he's probably less talented than you - but, more importantly (even if he were): that doesn't even matter! You might fret about that 20% 'sheer dumb luck' - somewhere, some 4 decades ago, a woman gave birth to a baby at the exact same time as your mum did to you - THAT baby's 'sheer dumb luck' counter maxed out the moment he survived birth!"
It's the diametrical opposite of what we like to call a "meritocracy". I don't like Blair, and I despise Johnson. Both were born a lot more privileged than me. I'd still have either of them as a head of state (that I can cast a vote to oust) over "lucky boy, born on the same day as myself - might deserve it, might not: the issue I have is: it DOESN'T EVEN MATTER!"