Yes, definitely. I'm not claiming Asta Kask, or people like him are of that magnitude, but I can't help but think of that sort of thing when people sexualize things that (in my mind) are not sexual.
I disagree. You can have all sorts of imagery about birth and creation without needing a pregnant person.
Also, Lady GaGa is a lot shorter than you'd think. She does wear insanely high heels a lot though.
Really, the main thing I like about Born This Way as a gay anthem, is that it's explicitly stated that it's about the LGBT community.