Heaven forbid that we stick our noses in foreign affairs militarily--we've done enough already. There has to be another way to stop the strife that is taking place in Africa and ME. Civil wars cause extreme poverty and misery to countless millions, who were poor, to begin with.
These poor peaople move. Where? Prosperous countries with more stable and tolerant governments.
Where? Europe, for one. That means us. If we don't like it we have to stop it at source. Stopping people at the border, when they, already, have nothing to lose, fills them with dread at the prospect of trekking all that way home again, so they camp where they are.
So, until we stop the strife at source, they'll keep on coming.
Why is it the west's job to clean up some of the most despotic and corrupt regimes in the world? I seem to recall a lot of opposition when this was enacted in Iraq.