We poke fun at a lot of people here. We poke fun at Christians cuz they believe in the Bible. We poke fun at the Nazis cuz they kill Jews and then say they didn't. We poke fun at Bush cuz... well, he's Bush. We might have poked fun at some homosexual people, I don't remember. But we certainly didn't poke fun at them BECAUSE they are homosexual. For some other reason.
Anywho, here's a video that might explain it even better than the marvelous paragraph above.