Genuine question. If it doesn't apply to you, then why is it such an issue? I'm not trying to come off any kind of way, I'm open to discussion.
I think as black people, majority of us are conditioned in a way to somewhat expect that most white people would in their private time say things like that, not necessarily due to any specific individual, but because of history. I get it, you're an exception, and i'm sure there are plenty of other exceptions, but I don't think you could personally fault any black person for already having that expectation/reservation because at the end of the day, you still benefit from that very same racist system. If you're not a racist white person, that is absolutely amazing! And that's great! But I would hope that maybe you would at least try to empathize and somewhat come to an understanding that as black people, we've seen and heard it all before. I don't mean to reply with a long book or anything, I believe in having genuine discussions about this kind of thing, but I'll give you a quick example:
I went to a quaker school from Pre-K to the end of middle school. The school taught us all, black, white, whatever, that we're all one in the same. In a perfect world, that probably is the case. But in the real world, unfortunately it just isn't. Anyway, to tie it in, I had plenty of white friends and still do to this day. And they would swear up and down that they were 'colorblind' (which I think is problematic, because if you don't recognize my race and history, you don't recognize me), and would never ever condone any racist behavior, just to turn around years later to hear they've been saying the 'n' world to all of their little white friends.
So... I've kind of personally just become conditioned to not really be SURPRISED if one of my white friends of today were to end up not being as 'wholesome' as they said they were. Do I hope for the best, that they wouldn't fall into that category? Absolutely. But I've just seen it happen too many times. Am I really wrong for feeling that way?
I hope I got my point across in as much of a respectful way as possible given the touchy subject (especially on this board).