I've seen extreme homophobia from white people, too. And hispanics.
I think this is a hate-problem that isn't actually ethno-centric, but rather a classism and social ostracism issue.
Just because something's stupid and pointless to hate over doesn't mean people won't.
If humans are good at anything, it's hating anything different from themselves under the belief only conformity can somehow result in a better life, when it is in fact that heirarchized structure that causes the misery in the first place.
After all, corporations can't convince you to buy guns and tanks to mow down those dangerous minorities who DARE to ask for equality, unless they also perpetuate the poverty and class struggle they're protesting in the first place!