Yeah, I know, it sucks when you don't ship the big ship in fandom, but you obviously can't stop people from shipping it, writing or making art for it, you just have to find other people that don't ship it. I know for a fact there is a considereable number of people in fandom that don't ship Steve/Tony, OP, and their corner of fandom may not be as busy but they're just as fun, you just gotta look for them.