I am not sure exactly what kind of proof you expect me to deliver that isn't "trust me, bro" all the way to the bottom. I don't keep in touch with the racists in my life, so I can't supply you with a way to contact them and verify my analysis. Do you want an example of what I am talking about?
Then here's the most basic example that I can think of... I moved in next door to a guy that I eventually realized was into some of the same shit that I was. We started hanging around a bit and one late night we after finishing some repairs on my car, we took it for a test drive and decided to make a run to taco Bell cause it was the only thing still open. The guy at the window is black and this dude starts dropping hard Rs and asking the guy at the window if it is normal people making his food, or a bunch of monkeys, ect, ect. I then did my best to avoid him, and as soon as my 6 month lease was up, I got the fuck out of there because I didn't want get shot by someone with the wrong apartment number. Over the span of about 30 years that particular area went from largely black to almost completely Hispanic. Most of the old food places went out of business, or moved, but a few of the best lingered on, so I would make the trip sometimes just for the food.
As I am standing in line outside one of my favorites, a guy comes walking out of the place and walks up to me like he knows me. I realize it is my old neighbor. This food place is owned, and operated by a family so dark that there's absolutely no confusion about them being black, so I am thinking that maybe this dude changed his ways and learned to not be a piece of shit, but then he starts in on how the neighborhood got taken over by illegals and other Hispanic slurs. The thing is, when I met him way back, he spoke Spanish, he was dating a Hispanic, and as far as I could tell, all of his friends were Hispanic.
I doubt that he was suddenly in love with blacks, but it was quite clear that black wasn't his most hated skin color anymore.