Haven't you read about restrictive abortion laws being passed in some states recently? Or TN's new law to remove evolution from class? Or the no say gay law in Missouri? How about the sperm bill in Oklahoma or that new Kansas law to allow religious discrimination of gays?
How long are we going to pretend there is no theocratic agenda and that these things aren't going on?
First, all of the things you mentioned are also supported by some Democrats as well. So are Democrats just as guilty as wanting a theocracy?
Second, none of those are actually (besides evolution) about religion. Abortions main argument against is that it "kill a person." Most Democrats also aren't are that happy about abortion either anyway.
Gay laws generally focus on not a religious idea (as really, the Bible says pretty much nothing on the subject) but one based on a prejudice against a minority. We see it all throughout history with other groups as well, such as those who are left handed. To pass it off as religious really does no good, and it hampers the progress as it is focusing on the wrong problem.
Third, you're showing the same type of intolerance that you are accusing others of. I say that because you are demonizing Republicans with broad sweeping generalizations, that really aren't based on facts, but on rumors/gossip/ignorance.
Finally, none of that is what a theocracy is. There is a separation of church and religion which would make a theocracy nearly impossible. More so, as evidence consistently shows, the United States will not vote for a president who would try to lead through theocracy, as in, we generally vote in moderates. Not to mention, even if we had such a president, it would mean very little as we have a system of checks and balances that would equal it out.
As a side note, trying to implement some "religious" based laws is not trying to set up a theocracy.