OUT just did an interview with filmmaker Todd Solondz (Welcome to the Dollhouse, Happiness, Life During Wartime) and in the process they end up clarifying a misunderstanding we've had for years. Todd Solondz is not, in fact, gay! Instead, they just call him "exceptionally ethnic" and "hyper-Semitic" and they note throughout the interview all the times he slips into a Zero Mostel impression while speaking.
As for speaking to a gay audience, he says he always knew he kind of was, as far as telling stories about marginalized characters etc. But yeah, wow. He doesn't like dick.