No doubt that LGBT community has been long discriminated, and gays suffer more from discrimination than lesbians do. I've watched some Playboy models' interview; there is two common questions:1: Have you ever kiss a girl? I don't recall any model denied; 2: How's that feel? "It's awesome, I like it." I haven't watched any gay magazine models' interview. but I don't think they would ask these questions because most people think that girls kiss each other is sweet, while guy's kissing make their stomach turn.
What's the first image come up to our mind when we heard words "comics, animates, cartoons?" "Cuteness, lovely, kids, adorable, funny..." all kinds of positive image. So, even though the LGBT themes in comics and animations seems a bit weird to some people, they usually don't have a strong feeling that their moral sense have been defiled. Besides, seeing real gay people kissing and seeing it in animation are completely different feeling. That's what I believe that LGBT themes comics and animations, to a certain extent, help "normal" people to understand that these sex orientations are not evil.