Even a casual glance at the list of films provided demonstrates that the gay characters therein are overwhelmingly male specifically, and indeed that they are most often presented not even as normal side characters so much as either villains or as a kind of punch line at that. Further, those depicting lesbians (especially in good faith) are one-sidedly obscure films, not part of major franchises that millions of people have been exposed to. Indeed, the fact that such a list has to be kept at all proves by itself that gay characters are marginal in the world of movie-making.
You also seem to be implying that I'm requesting nothing less that actual sex being depicted on-screen (bolded), which isn't what I've suggested at all.