most of the religious attend to spread the peace and not killing people, but those who does then they deserve being in jail.
I don't think so. The religious nuts are responsible for 99% of the violence in this planet (especially the Semitic religions). I am not saying that non-religious people are all angels, but at least they do not engage in violence in the name of religion.
I know for example in Saudi Arabia and the UAE is raising money for Muslim terrorists in mosques campaigning for a fight against the infidels, as in Russia, the Church campaigns of mercenaries in the war in Ukraine. In Yugoslavia, what did the religious leaders?