Whoa, that's retarded. Hasn't he said other quite anti-white stuff, too? As well as pro-trans and other progressive stuff. Dude either always was like that, or got big and toed the party line.

Anyway, to that linked tweet:

Tech tip: Benefits of dating outside your race include

1. Greater genetic diversity for our species
2. Many times larger dating pool to find 'the one'
3. Very cute babies (tho I'm a little biased)
4. If we all do it, no more racism cuz that shit's really really really stupid.

1. Prove diversity is inherently good. He claims diversity, so races must be different. Wouldn't that mean that some races might be a net negative in producing offspring?
2. I'll give him that one, I'd be a hypocrite if I didn't considering this is basically the inverse of affirmative action. If, for the sake of argument, you're equally attracted to all races, it would be stupid to limit yourself. That said, people do have a natural and genetic attraction to their own race. And, as already established, races aren't all identical cutouts. But, yeah, technically it's a larger dating pool, this is the only one with even a modicum of validity.
3. Most people think all babies are cute. What's all this propaganda about mixed-race babies somehow being observably cuter than babies of parents who share a race? And, just like in a #2, people tend to prefer their own race. So if you end up with a baby that doesn't look like you, that might seem less cute. This one is at best neutral.
4. Ahahaha, the classic. This is the most retarded argument for race-mixing, but also one of the most common. You only have to look at something like the Middle East, or Asia...as well as pretty much everywhere else. People can look damn near identical, people will still be horrible to each other either for other reasons (religion and nationality being big ones), or manage to still make it about race, despite everyone being a totally perfect and beautiful brown or whatever. This idea that if we just all fuck each other until race is no longer a thing (and this is just code for the white race no longer existing), that everyone would get along...it's hilariously and blatantly false. Again, we don't even have to get into hypotheticals, you can see the human conflicts happening along lines other than race all over the place. Kumbaya, motherfuckers.