Germans have always been pro-Muslim because Muslims are trying to enact a Final Solution also.
That may have been true years ago, but I think the main reason that Germans nowadays (and for that matter Brits, Frenchmen, Canadians, Obama supporters, etc.) are "pro-Muslim" is because they are spineless cowards, much like most Europeans and Canadians, and more and more Americans as well. There are many that are Anti-Semitic, but no more than any other Liberal Western place.