This is an excellent summary of the fundamental issue:
The above post is the sole real motivation behind any of this. There are a lot of ostensible excuses, but they're all lies. The above is the truthful statement of intent behind it all, and that's exactly why the bigots are losing every fight they pick these days; because they've gotten more and more angry and insulting until they made it completely crystal clear what the real motivation was. That's a big part of why David Blankenhorn, once one of the most respected and influential opponents of marriage equality, switched sides; he concluded that the real underlying motivation of most of the people he was working with was simple hostility, and he didn't want to support it.
It all comes down to people who nominally believe that other people will be punished for being different later, but also believe that God's not fast enough or competent enough and it needs to happen now before they lose their rageboner.
Thank you, anon. It was people like you who defeated the anti-gay amendment in Minnesota, by trying not quite hard enough to conceal your seething rage, and turning a state full of Lutherans who are a little uncomfortable with social changes like the widespread use of electricity around. They would never have voted against that amendment on its own; it wasn't until the people advocating for it started talking that Minnesota Nice came into play.