Ignorance of Hebrew scripture is fundamental to Christianity, a religion that came into existence by mishap. Jesus never intended gentiles to follow him. He was messiah! His purpose was to entreat the 12 tribes of Israel back to faith in Jehovah. This fundamentally underlies the zealous way Christianity spread. Violence is a way to hide ones weaknesses. Also remember the Roman Empire had little regard for human rights or those outside their domain and Christianity was the way it exerted its power even after it had died.
The moderating influence of Islam and Orthodoxy brought about the Enlightened. We all though the violence of genocide, the Inquisition and the Jesuits was over. Alas Evangelicals are Christianity’s Taliban/Ayatollahs. For both Islam and Christianity a religious life or way as in Islam are terminated by Judgement Day. Anyone who believes is such a concept has to accept pluralism, deviation and freedom of belief. Yet certain minorities like the Lords Army, and Crusaders throw themselves beyond the pale.