I'm not gay myself, but I don't enjoy watching people saying that God hates
ANYONE! Tell a bunch of gays and lesbians to put this on signs.
For God so loved the world, that he gave his only begotten Son - John 3:16
That's not the entire verse, but I think it should get the message across. Of course, the "God hates gays and lesbians!" nutjobs will probably just ignore them... Worth a try, though!
Also, I liked the "[Citation Needed]" one.