That's something I have to bow to you. I've never seen or encountered much in the way of outright homophobia. Homophobic comments, yes, but nothing to the degree that I believe you've experienced.
I was wandering the streets of Wellington, New Zealand, before Christmas (it was a pleasant weekend and I went for a walk), and a couple of men, probably late thirties, ran past me. One chasing the other. The leading guy allowed himself to be caught not too far in front of me...and then they kissed. In public, in the capital of New Zealand, in the middle of the day.
That's my experiences when it comes to seeing openly gay people. I'll admit that I still give a double-look when I see two young guys holding hands while walking down Chapel Street in Melbourne (it's not that common, but I've seen it more than once), but there's no one screaming or pointing.
I accept that that isn't the case everywhere, but while I know that intellectually, I don't know it or understand it emotionally.