I am "Calvinist," but, to me, Calvin proved the stupidity of why no one can go to be a theocratic state. Many get in the way of God too often, and then claims, "It's God's will."
Calvin got cocky. (Probably didn't help that a bunch of people kept telling him he's all that and a bucket of chips too often.) Thought he could keep a theocracy, and sure enough, just like it happens here, someone is a heretic so kill him! When you run out of the obvious heretics, then you have to go with maybe-heretics. Kind of the same thing that happened in Salem, MA.
Each one of us has the proclivity to do the same damn thing, so I don't consider John better than or worse than any of us.