Via Towleroad, the answer I was seeking:
Personally, as with the "gay guys will marry your girlfriends", I find the hilarity kinds of overcomes the dopey, underlying sexism of the argument. And I find, as a gay man of a certain age, that both sides of this "debate" kind of jibe with the way life is now - funny gay guys who don't see every straight man as a potential boyfriend, and straight men who aren't nearly as uptight about gays (or gay seeming stuff like a fashion sense) as we were led to believe. I remember the straight friend at my last company who said, with heartfelt assurance, that he'd "totally be my wingman" in a gay bar... and the layers of assumptions and prejudices I had to put away as a result. I don't think "we'll marry your girlfriends" is a good or realistic plan... but heck, even threats like that can start a dialogue. And isn't that a good thing?