Dude. Germany has a problem with violent people that got here by illegal measures. People are being stabbed, beaten, killed and raped, Christmas markets are not safe. It does not matter how they could integrate themselves, because they don't want to.

I am an immigrant from poland, seeing that german politicians destroy the identity of their people leading to xenophobia without differenciating. They destroy it by letting this people in without any control. And even if there is a control or a negative result they will not be sent out of Germany. They just stay here and become criminals. Wanna know how integration should work: Go home when you are legally not allowed to be here. Simple as that.