Do I really need to deal with my gay bother bringing male dates  back home?
Will it make you feel awkward and uncomfortable if he does?
Yes, my brother is gay and I don't like gays
I think you should try and be more understanding towards your brother. It is okay to ask your sibling not to do something you don't like. You should talk to him about it and show your concern rather than forbid it.
I can't control what feels uncomfortable to me.
Being homophobic towards your brother and gays in general is wrong. He shouldn't be asked to accommodate your homophobia.