Just gotta mention an episode of PBS' Frontline from last year:
This university (can't remember which) did a study to see if Freud had it right 100 years ago when he surmised that repressed homosexuality was the cause of homophobia. The study put electrode rings around the penises of all the males who expressed homphobic views in the study. Then they showed erotic films with heterosexual, lesbian and homosexual sex scenes, and measured the pressure against the rings. Indeed, they proved Freud to be right.
Two words: Roy Cohn. The most notorious gay basher was himself gay. Or the dad in _American Beauty_ who went around yelling "faggot" and then planted a wet one on Kevin Spacey. Doesn't take Freud to see..........