trained to not see the color difference? lol. No.
We just figure out for ourselves that it's better to choose not to use "color difference" as though it were a valid judgment criteria, except in purely aesthetic situations.
Most people do realize: regardless of someone's appearance, they could indeed be intelligent, compassionate, helpful, and valuable to a high number of people. Look at Stephen Hawking, ffs. Yeah, he's "white," but so what? He's technically not even close to the smartest person alive. He's actually on MY level. He just spends far more of his energy on mental pursuits, because physical pursuits aren't really an option for him. That the primary cause of people perceiving him as so much 'more' intelligent than 'normal' people: he spends almost 100% of his conscious existence, practicing Brain. He started with gifted potential, and then embraced and developed it deliberately, instead of going through life believing the people who say things like "you think too much!" Most people "act too much."
Meanwhile, Neil deGrasse Tyson, is a 'mixed race' human with incredibly potent intellect, and is also just a good dude in general. His aesthetics are, IMO, entirely irrelevant. I don't care which region of the planet his parents came from. Why should i? Why should anyone?
It's not that we "don't see" that skin color varies; it's that we think that's a stupid excuse to use to disparage anyone. Maybe it's just that racists are afraid of difference? Maybe it's not even 'race' that is the real issue. In fact, i don't think 'race' really IS a real issue. Seems contrived and manufactured, to me. Entirely unnecessary and not useful or good.
It would be the same as if a girl i didn't find aesthetically appealing, was nice to me anyway. I'd be nice back. Why do i need to care whether she's 'good-looking-enough', if our interactions consist of verbal language? I don't. Plus, since i'm not 'that way', i'd prefer a compatible personality over a gorgeous wicked cunt who risks my health through deception for stupid reasons. No matter what 'color' any of them happen to be.