These kind of things will be the tripping point in Germany and the rest of the EU. The backlash will start and a Civil War will start between the Germans and the so called refugees. It is going to get ugly.
What’s interesting to contemplate, is what happens when Germans feel threatened enough in their own country to start looking at moving to certain other parts of the continent, where Germans used to be settled. Especially those countries that haven’t given into this invasion.