>>13799283IIRC, a study was conducted where they looked at African American's, (who are on average 30% white) where if there is an outbreeding depression in humans, those who by, genetic chance, happen to be lets say genetically 50/50, rather than 20/80, that population (the 50/50) would have higher rates of mental illnesses. Instead what they found is the more black you are, the more mentally ill you are, and the more mixed people where more mentally stable then more 'pure' blacks, but less so than 'pure' white people. Outbreeding depression exists, but so does heterosis and inbreeding depression and they can exist simultaneously and can so statistically measure to cancel out.
I would source it, but I can't find it and I don't know if it actually got published (you can understand why it would have difficulties being published, not being woke and all). I heard about it because one of the writers shared it and the results before publishing it in a YouTube video. That video is long gone and isn't on bitchute or anything like that as far as I'm aware. His name is Michael A. Woodley of Menie who is well associated with Edward Dutton who I think is popular with some people on this board. Also /lit/ likes one of his books :|
tl;dr, being biracial doesn't make you mentally ill, being black does, and biracial people are more black then average.