It tells me several things. First, the devil loves it when people hate for religious reasons. Second, there is an assumption that people of faith (like myself) who oppose same sex marriage are some how hate filled bigots. This is not the case. It implies that people of faith (or at least of Catholic like faiths) are haters when it comes to same sex marriage and homosexuality in general. I am not of those particular faiths, but I feel this implication is very false. Finally, the issue behind the illustration skirts the true issue at hand. Should the government be involved with regulating who can marry who.
The issue is rather simple in my mind. The state (government at any level) should not regulate marriage. Marriage has been and always will be a religious based social contract. All the government should be involved with is keeping records of marriages. Then, if a gay couple wishes to be married all they need to do is find a faith (or non-faith) to marry them. That moral issue is between them and what ever god(s) they choose to believe in. If it turns out that it is wrong morally then it is between them and their god(s). So long as an individual is not harming another there should be no laws allowing or disallowing such a behavior. Once another is harmed such a behavior is governable by law.
A point of clarification by the way. I think atheism is a religion. It is a firm belief that there is no god(s). That life is the result of scientific principles and that is it. Since the existence of God has not been proven nor disproven this in my mind shows a level of faith in the lack of a god(s). This view is not intended as a condensation. They are welcome to believe what they want. But this classification would allow for people who are atheist to be married by other atheists if being married is something they wish to do.