...a society should restrict immigration from regions of people who hate that society. It is perfectly reasonable for the US and France to restrict immigration from countries where Islamists are grown. Immigration from Hungary to France, or Mexico to the US...that is different than Syria to either. At a minimum, immigration from incompatible cultures should not be naively actively encouraged like Obama did (not naively, because he truly was trying to change America and rectify its colonialist/imperialist exploitation of third world nations) and Biden is about to do (naively, because he has no idea what he is doing in this regard, and just following "feelgood" philosophy without regard to actual, predictable bad consequences, like most modern liberals).