Agree. Germany have played this very well.
Cameron is smart and knows the score with Germany - Hence why he's agreed to 25k people to diffuse the emotional blackmail by the thickos - and what I found admirable was the plan to bring the refugees directly from Syria so as to like Germany hand pick the the educated and professional classes first.
The conspiracy theorist would suggest that the motive for supplying Isis with weapons in the 1st place is to fuel the western economies not just through weapons but more importantly through the Brian drain program that they "Isis" have seriously help accelerate.
They've targeted the most smartest, qualified, educated and moderate of Arabs who will easily fit into western societies.