The European nations are facing challenges to their stability due to recent spate of protests, many of them violent: in France Italy and Spain Due to lax border and liberal immigration policy Now there is destruction and protests many of them violent. Its either they tolerate these and allow chaos to prevail or resist in likewise violent manner and or deport the immigrants.
It has been advanced that a certain religion that spouses dominating other countries after they have moved their beliefs and their places of faith, laws, and espousing death to non believers of their God are behind these troubles.
Its up for them to decide what is best for their countries. Otherwise, this is another case of Trojan horse tactic, or termites in the house causing the house to collapse.
Is deportation the solution; closing the borders as Poland USA did? No room for multi diversity? Be realistic that the other religion wants dominion and conquest? Without firing a shot...