are you just really asking this kind of question ?
do the germans were all NAZI , i dont think so ,
they are a lot of european people into ISIS , all that youth people who were frustrating by politics , governments etc ...
People shoul think diffenrently , of corse they are good and bad persons all around the world , be open mind , i dont forget that the first victims of terrorism are for 95% muslims ,
so my advice , think about all that people who are suffering in silence ... because they are from the third world , and are not notice in media , because their lifes are cheaper then others , it s sad to see that there is a cost for each life in this life , so open your eyes , and do not follow the way the medias shows us ...