Most of the Syrian refugees I met in Lebanon do not want to be there—or in Turkey, Jordan, Iraq, or Egypt. They are fleeing intense fighting, ethnic cleansing, starvation, chemical attacks, and Russian air strikes that devastated Aleppo and other rebel-held areas. It is clear that they are not welcome in Lebanon, where they are increasingly seen as disrupting the country’s delicate sectarian balance among Shia Muslims, Druze, and Christians and as vulnerable to Islamist radicalization.