I've never called anyone racist in their dislike. I just don't know where it all comes from, that's all, but not once have I accused racism. I find it puzzling for the dislike to be so strong. And yes I agree with you, in some cases, it will be racism amongst the general public. On here, I don't know, there will be some but I don't know who.
So yes the dislike comes from elsewhere. I presume it's a myriad of reasons.
Strong woman, American, does things differently, makes it seem like Harry is under the thumb, she drragged Harry away from the RF, the mismanagement of their press (that is valid, they've been fools at times), and of course 'the book'. That was a misfire and I am sure they now realise that, whether they had anything to do with it or not.
Me personally, I don't find her abhorrent like some do. I like her initiatives, I like they want to do good together, I think he has found his soulmate and I think he was not happy in the confines of the RF, and along comes Meghan and that gives him his 'out'.
That's my take on it. Just my opinion of course, no need to shoot it down in flames lol