The immigration crisis is a direct result of US and EU imperialism. Syrians do not want to leave their country; but the US and the CIA drove them out with Operation Timbre Sycamore. Salvadorans did not want to leave their country; but the US supplied training and weapons to contra death squads in El Salvador and drove them out.
Stable borders and subdued mass-immigration will come by way of anti-interventionist foreign policy and anti-war principles. 