I'm not talking about natural selection, I'm talking about sexual selection, which is a completely different animal. Sexual selection leads to really bizarre adaptations, like male peacock tails and mating dances that seem maladaptive in the context of natural selection. Natural selection is about finding enough food to live long enough to mate. Sexual selection is about competing within the same species for mates.

Because slightly more highly creative people are homosexual doesn't necessarily mean creativity isn't attractive. It could just be that homosexuals have more time to devote creative tasks due lack of childcare responsibilities.

I would say that people often aren't consciously aware of why they are exhibiting creativity. On top of that, I would guess that homosexuals value finding mates just as highly as heterosexuals, which would be at least one reason why they would exhibit creativity, consciously or unconsciously.