Well at this point how would any country know for sure that those they are taking in are not HAMAS supporters? How do they vet those that they would bring to their land? I understand that everyone in Gaza is not supportive of HAMAS, but it is who is running the show at this point. All those terrorists have mothers, fathers, sisters, brothers, children... how would countries know for sure they were not opening their country up for these terrorists too? I am not suggesting everyone is a terrorist so please don't read that in what I've said.
Thinking what we saw early on with one terrorist telling his parents about what he'd done and they were thrilled for him. They might not be part of HAMAS, but the support of it is equally disturbing.
I understand why countries are leery.
Also, too many countries in the middle east won't stand up and say exactly what HAMAS is. Until the world takes a stand against terrorism we will never get rid of it. They will always have a safe place to go hide within these countries that won't denounce it and won't stand up on their own to eradicate it from their borders.