What causes homophobia? What is it that makes the...

What causes homophobia? What is it that makes the heterosexual man worry about this? I think it's because deep down all men know that we have weak sales resistance. We're constantly buying shoes that hurt us, pants that don't fit right. Men think, 'Obviously I can be talked into anything. What if I accidentally wander into some sort of homosexual store thinking it's a shoe store and the salesmen says, 'Just hold this guy's hand, walk around a little bit, see how it feels. No obligation, no pressure, just try it.'