So wait... you're criticizing MMA for being "gay" and MMA fans for being "insecure." I don't think that word means what you think it means. Wouldn't we be more insecure if we refused to even give it a try just because we were worried about how it appears?
Also, it's a sport. It requires a
load of skill and it is entertaining to watch for those that can appreciate the level of skill required. Why do you care so much about what other people enjoy doing (professional fighters) or watching (fans)? I hope you're exaggerating, for your sake.