Honestly, all this hadn't started till Haikyu got popular in the west - when fujoshis became a big part of the fandom. If there was, then all the men and women who play in all male/all female team-sports would have to be considered gay - which is just stupid and ridiculous.
There is not even a hint of yaoi in Haikyu. I never thought of kuroko as yaoi but suddenly i thought it was fucking gay and i didnt think haikyuu was THAT gay but know people are clouding my judgment