The idea of gay relationships between popular characters in comics and cartoons was never something that the male audience asked for, however it has been pushed by every single type of media very hard in the last years, videogames, comics, cartoons, movies, news, etc. (I have never seen other movement invest so much to promote a kind of entertainment)
What people behind this movement (LGBT) never understood is that you can't force other people to enjoy this content. It's like this example:
Peanut Lover: Man, you should eat this peanut.
Common Man: Sorry, but I am allergic to Peanut.
Peanut Lover: Come on man, eat it.
Common Man: No, I said that I'm allergic.
Peanut Lover: But it's good.
Common Man: I said NO
Peanut Lover: EAT IT!
Common Man: Fuck you faggot.
As you can see in the example, not only didn't the man eat the peanut but even worse he has developed a hate for Peanut's Lovers.