It's not even about religion. Rohingyas are not native to Burma nor anywhere else. They were historically stateless and pushed around from Indian Bengal, to Bangladesh, Burma, and today, back to Bangladesh. During Burma's pro-democracy movement, Islamists used them as footsoldiers to advance their agenda in hopes of hijacking the democracy movement to install a Islamic theocracy, as what happened in Iran, Egypt, and many other middle east countries. Everyone knows this but no one dares to say it. Except the Burmese fought back. It takes a lot to push Buddhists, of all people, to murder. Probably because Buddhists and Hindus haven't forgotten what Muslims (Rohingyas included) did to them when Bangladesh declared independence. This is about settling old grudges.