It's a bit like all those shows and movies which have vampires and people who live forever, but are straight, straight, super-straight - and I'm like 'please, get with it' it seems a little homophobic.

Since when does making a character straight equate to being homophobic? And as far as all those immortal vampires - you are, I trust, talking about the lineage popularized by Anne Rice and, subsequently, White Wolf? The material where you can't turn around without seeing vampires who are so far past hetero that they can't even see it in the rear-view mirror?

As far as Kirk goes - this is an established character who is very, very hetero in Old Universe, and his characterization in New Universe only strengthened that. In the absence of a favorable father figure, he goes to extremes to demonstrate his macho cred. You know, things like picking fights with four Academy guys at once, or behaving like God's Gift To Women?

Furthermore, in case it's not obvious: having Kirk flirt (or more) with a guy would have driven a stake right through this reboot's heart. The community at large would no more accept that than they would accept making Scotty a teetotaling Viking, McCoy an officious Brit, or Spock a swingin' party animal. It's just not part of their characters.