Allow me to paraphrase

If you don't vote the way I do, you're a sinner.

Sometimes brevity is the soul of truth.

Remember, as I pointed out here, Mark happily joined the Left's ripping of the teenagers from Covington High school, dismissing angst over the death threats and downplaying the accusations of them being racists and Nazis (that were found to have been based on a false accusation by an American Indian activist).

So any other paraphrase doesn't appear to fit, since it's obviously not the trashing of teenagers or comparing them to Nazis that, in itself, sets his teeth on edge.