I couldn't care less about any team-mate of mine coming dressed the way they wanted. And I'm not surrounded by "every minority group", so if someone told me tomorrow he rather I use "he"/"she"/whatever when referring to them in public, they'll be the first one and I'll have no problem at all. I might forget some times, but that's fine too. Pronouns are also more of a personal thing than a minority group thing: I don't change my language when I talk to black people, or to white Americans, but if a person asks me, sure, why would I give a damn about language if that makes them feel better.