It's possible to make a comment about a gay person without it being gay-bashing.
Yep, but your speculation about Singer and Routh didn't prove it.
It's possible to make a comment about something a gay person may have done due to their being gay, without intending to bash that person's gayness, or bash ALL gay people because they're gay. My admittedly snarky comment was directed only at Singer himself, because of something he himself personally may or may not have done. Said comment, in fact, is something a gay friend said to me after viewing the same DVD extra. I might say the same thing about, say, Joss Whedon for casting Eliza Dushku after hearing the way he sometimes moons over her in interviews. I would, of course, leave off the Seinfeld gag.
Lordy, the PC oversensitivity sometimes feels like witchhunt mentality.