Todenhöfer is an ideological Leftist. That's why he doesn't understand.
He probably thinks all men are "basically good". He is likely an atheist so God and Satan mean nothing to him. He also has obviously never studied history. Muslims have murdered hundreds of millions and so have the Communists/Nazis so it's not like mass murder hasn't happened before on a grand scale even in very recent history.
Todenhöfer is a blind fool just like the rest of the weak, mewing Left. Their leaders aren't, though. They are perfectly willing to do the same thing as ISIS to forward their ultimate goals.
Consider the consequences of 'genetic inbreeding', along with a 'cult of death wish', along with being emotionally driven to bring about the Caliphate,
and then you should be logically and intellectually capeable of understanding the forces that Europe , and we , ourslves, are going to be dealing with.
Denial of these issues is more than complacentcy .., it's downright stupid !