Kurt Cobain said:
“I started being really proud of the fact that I was gay even though I wasn’t.”
Well, if they think so, stay what you are, just to piss off these usual people and keep them away. Being labelled as Gay is usually associated with people having less interest in sports and more in aesthetics, so artists usually have to face such situations, just like Kurt in his school years has to face some awkward situations. Kurt states that he started accepting the fact that people think him gay, just to piss of homophobes.