Yes extremism doesn’t have to be a negative thing. It’s very appropriate for beliefs relating to moral values, if they’re the ones stated in the Bible. Liberals don’t seem to understand that Christianity is not political, nor do proper Christians desire to control what others do. Jesus said “My kingdom is not of this world”. He also said if someone refuses to hear your message, shake the dust from your shoes and move on. But there are a few (far fewer than they claim) examples of Christianity being used for a negative purpose. Extremism can also be a bad thing.
Yeah, though I’m pretty sure God does ultimately desire to control what other people do. He did tell us to go out and spread the good news to the four corners of the world in the Gospels, and I can see no other way to do so than via force, to ensure God is Emperor over His creation as he desired the day he created existence. Otherwise, he’d pull a Jimmy Carter and leave us to die.