Put yourself in their shoes and you will understand what they face everyday, I think they should be integrated to the new country, new community and should learn the new culture, the country they left will not be the same with the country they go to and they should accept the reality.
IF they choose to integrate and work actually, but most of them are going to UK, Germany, Swe, just because of benefits. if they we're fighting isis like they were fighting border patrols to get in one country, they could have do something, but I guess islam and homeland is not important when some other country is giving out free benefits.