This is a radio ad that Mitt Romney is airing in Iowa. He is trying to convince conservative Iowans (?) that is he is sufficiently homophobic.
Listen for his statement, "As Republicans we must oppose discrimination and defend traditional marriage: one man, one woman." Uh, you are fighting discrimination with a same-sex marriage ban? Who exactly are you defending against discrimination, Mitt?
Also, if you take a look into Romney's past, you will learn he had very different views on gay rights when he was Governor of Massachusetts.
Ok, you can't have it both ways. You criticize Romney's position on same-sex marriage, but you put words in his mouth to illustrate his "homophobia."
You think he's being discriminatory, but you are acting in a way that solidifies his position.