I think Hollywood is (in its dumbness) to an extent simply reflecting what it lives and knows. Years ago I was immersed in the live theatre world, and probably half my friends were homosexual. They were drawn to the theater because they felt at home there with all the other gay people (plus a real interest in theater). However, now I’m no longer in the theater, and my friends are pretty much average people in the community . . . and you know what? I know *one* homosexual couple here (and don’t even know them well; I just met them once). No one else. The only homosexuals I still know are only on Facebook, and they’re my old friends from college. So Hollywood looks around and sees gays everywhere, and seeks to represent that on the screen. The rest of us see them only occasionally (which makes sense, since they’re actually only 1% or so of the population). Hollywood is successfully skewing the view of the world toward *their* version of reality.
There are a few people I went to high school and college with who have since become homosexuals, but I don't know any in everyday life.