The idea of ‘refuge’ which is where ‘refugee’ comes from, is to give someone safety from whatever they are fleeing from (ISIS). A safe zone logically vets those who come into it otherwise it’s no longer a safe zone.
Without vetting procedures, there is no point, because your not giving anyone refuge, as whatever they are fleeing from will follow them there and also endanger everyone else in that Country.
As for Islamic Immigration, ISIS claims to be an Islamic group, so for starters, those who are Islamic are of less need of refuge then their non Islamic counterparts, so those who are not Islamic, such as Yazidis and Christians, should have higher priority because they would be more in need of refuge (The priority should be based on their need, one can simply look and see who ISIS is targeting most or first). The non Islamic counterparts are also less likely to become radicalized and join ISIS. I’m not saying one no longer takes Islamic refugee’s, it just means one vets them properly, as Trump says, to have a fair idea that those who are coming into the nation are truly seeking refuge and don’t have ill-will toward the nation that is giving them refuge.
Next it comes to numbers, if one takes in huge numbers, like France and Germany, then there arises major problems as no system can cope, and then you get communities in Germany and France, which are like separate Countries. Such as Calais’ Jungle camp with Sharia Law being their law.
A better idea I believe, would be setting up a safe zone in Iraq or some place in the Middle East. Where one can go seeking refuge, and then they can be vetted and admitted in manageable numbers while in a safe zone in Iraq.
I hope this has helped
God Bless
Thank you for reading
Josh