Europeans have border controls, and they have police and soldiers. Why didn't this happen 10 years ago? The M.E. was just as screwed up then.
Certainly someone pushed the first large batch towards Europe. Merkel welcomed them. Suddenly it became EU policy and the word was out in every sh**hole in North Africa, West Africa and the Mideast that the Europeans had opened their borders. The beginning was, in my belief, clearly coordinated and pre-planned.
The destruction of Western Europe is a Soros/Jarrett production, with much of the ground funding coming from the Saudis. It had to happen now, during the uncountable second term, in this slim window of history where the globalist stars have aligned.