Why are conservatives obsessed with same sex marriage?

Personally, I disagree with the legal theories underlying the legalization of same-sex marriage in the United States. On the actual issue of whether marriage between two people of the same-sex is linguistically or morally proper, my personal opinion is “it is by now” and “sure, why not”, respectively. But I recognize that some people have strong feelings on those questions.

I consider myself conservative but I wouldn’t consider myself “obsessed” over the issue. I wouldn’t bring up the topic in conversation without a clear prompt (like a news story), although I might chime in on one already started.

~Max