They seem to have really stepped up their efforts.
I only recently learned that DC editor Bob Schreck is openly bisexual. What he does in private isn't the issue but it would seem that some of the top dogs are pushing a heavy liberal agenda.
Some kids may still read comics but I think that the readers are somewhat older now. They still shouldn't have to be subjected to crappy storylines that insult their political beliefs (and the leadership of this country). Comics are an escapist entertainment.
I don't read comics by DC or Marvel these days (although I did get the new Dark Knight sequel).
Most of my publications are by the West Coast (Seattle) publishing company Fantagraphics. It is safe to say that their politics are left of the DNC. It also doesn't seem to affect many of the comics that they publish (the majority are apolitical). Love And Rockets has some homosexual or bisexual characters but it isn't a part of the story to show that "they are good people once you get to know them" or to show how they are victimized. Other comics like Daniel Clowes "Eightball" have no recurring characters, they are just short stories. Chris Ware's work is about isolationism and rejection and doesn't make topical references either. Even Robert Crumb hasn't been political in his new comix.
It is an odd sanctuary that I've found in the comics industry in the most unlikely place. Now the interviews in the Comics Journal can run for 60 pages and get to be political but some of the ideas advanced are so off that they are easy to dismiss (the comments help to frame the mindset of the artist being profiled).