There's some irony in the fact that you wrote a bunch of fairly intolerant generalizations while mentioning hatefulness and tolerance.

Your friends from high school are responsible for themselves. Consider for a moment that perhaps your friends just grew up to be "douchenozzles" on their own, without the influence of a frat.

Your assertion that frats are racially homogenous is outright wrong and I'll ask you to cite your claims. And you think some members of frats aren't gay or similar?

Something something, generalization, plural of anecdote...

For someone who champions tolerance, you don't play the role very well.