Huh, I had to go look this up.
The quotes about black peoples are apparently from his personal diary, but apparently as he radicalised he dropped those views?
I can't find a good source for the Mexican quote, but there are a lot of academic sources I saw. I just don't know them well enough to trust them.
I can't find the sexual perverts quote, but Google sucks especially if it's a translated term so primary sources aren't being counted. He did write some essay about The New Man and this is meant to be a large source of homophobia in Cuba. Apparently the 'Deviation of Nature' part is actually FIdel Castro's word, and he put them to work in camps.
Overall I guess it tracks with some caveats?