The migrants know what laws are — there are plenty of them under Islamic sharia law. In the West, there is another type of law in their new host countries, which have welcomed them as guests. In the Middle East, “host countries” with “guests” is also a familiar concept. Virtually all the monarchies and emirates hold the view that the state is their “house” and newcomers their guests; so if a guest cannot behave the way the host expects, he is escorted out. No one would expect a host to put up with a guest who trashed his house.