The current news out of California shows the lengths that atheists go to deny religious rights to Christians. Communism always tried to outlaw all religions as the leaders always wanted complete subservience of the people to the government. I served in Lithuania during 97-98 and saw how the people there had a huge rebirth of religion (all branches of Christianity) after the Russians left. Muslim nations, with only a couple of exceptions, do not allow Christianity, Judaism, or any other religion.
I do not see an end to religious wars in the near term. But you never know. Look at how the Saudi’s are working with Israel and have formed a partnership against Iran. I think that the Egyptians, Gulf states and Jordanians feel likewise. Now if the Iranians decide to stop their attempt of building their world wide caliphate, then peace could break out within the Islamic world.