Selina and Slam, Sr. make a way better couple than Bruce and Selina.
Babs' true love is Ted Kord, not Dick Grayson.
The League of Assassins gradually and quite obviously became a ripoff of the ninja clan The Hand Frank Miller created for Daredevil.
I couldn't care less about whether or not having a gay Robin would reflect the population. The Robins are also all white males (Damian being a slight exception) with black hair. That can't be an accurate reflection of the world's population. What about the blondes and the brunettes, and shouldn't at least one of them be black? It's all pretty irrelevant.
The notion of "too many gay characters" is pretty funny. That's not really how population reflection works, and in any case I think the comics ask us to accept a lot more fantastic ideas than more than two homosexuals running in the same circle.
Damian is impossible to say, especially since he's dead. I doubt the comics would have explored it anyway but there's nothing impossible about having a gay 10 year old.
As far as Tim goes (I think he was the first mentioned in this thread), well... I think he's absolutely redundant. I think Dick and Damian have the whole "Robin" thing covered. He made sense in the '90s when Nightwing was doing his own thing but now all he really does is lead the Titans, and they're not very good at the moment. Make Tim gay, reveal his Saiyan heritage, give him a time traveling pet dog, whatever.
Well, it seems pretty clear that TPTB seem to think Dick's redundant considering they took him out of a costume altogether. That isn't a diss, btw. Dick's one of my favorite characters. It just seems as if no one has any idea of what to do with him. With Tim they at least have a pretty decent idea.