Well then, I guess I break this off unilaterally at some point. Debate doesn’t work, you can’t browbeat someone into believing something (well, on soft topics anyway, you can with math). Most people just know that, I had to learn the hard way. Maybe you will eventually too.
I personally am neither rich nor fancy. I live in the country; I’ve never lived anywhere else as an adult. Believe me, specific races are a real thing where I live, and probably in the city too. It’s not some thing made up by a spooky cabal of academics. It’s strange you could even think that, with all the evidence from recent history to the contrary, including laws referencing the separate races, and how much mixing of them was acceptable. You could argue I’m not worldly enough, but my family is rather international, which should count for something. I’m kinda academic now, but that’s because I just was born an egghead. If it’s class that’s the issue, I’m not in the picture.