I'm really weary of this threadbare and moth eaten topic.
Frankly, if Star Trek
was ever socially relevant it ceased to be so before it even made it back to TV with TNG. Many 80s sitcoms touched on more social issues than Trek did.
Effectively, the gay argument in the US is OVER. National polls show that the majority of the US populace doesn't just support gay rights, a majority now support marriage equality
. These are not numbers set in amber. The acceptance of gays shifted by double-digit numbers in the past decade, and this trend shows no sign of reversing. The younger generation supports gays even more broadly, so this isn't going to change any time soon. If anything, the next generation (pun intended) is going to grow up with gay people as part of day to day life in a way they've never been before, and they're going to see it as completely normal.
In light of this, Star Trek's
no longer got any excuse, any more than it would if it had a lily white cast. Fan arguments that they should "take it slow" or that "it doesn't matter" are throwbacks to a bygone age that most of the nation has already said "good riddance" to.