This refugee question is such a overblown debate in the US. From the incendiary debates you'd think there are more than a million people for asylum. The actual number is a measly 25K - people who are let in after strictest of strict background checks- checks that are not likely to end before the war itself gets over.
The brunt of migration is actually borne by countries around the affected areas - Turkey , Jordan and Lebanon. Those are the countries which are actually saving the lives of refugees while politicians in the developed world play political football over the fate of a small proportion who crossed over.
It's the same pattern everywhere. During the Taliban's rise in Afghanistan, millions of people fled the war not to EU, or US but to Pakistan where they live even today. In the 1971 war of Bangladesh's independence, millions of refugees poured into India.
Germany has made and will make a tremendous effort both demographically and culturally. By the way, is not very clear how many refugees are really left in Turkey. In Europe, refugees and migrants from Syria (and Irak, Afghanistan, Eritrea, Nigeria…) heavily skew young and male. If Germany is not able to expell illegals and repatriate refugees in substantial numbers, they will represent a big percentage of the diminishing younger cohorts of the country. The true long-term demographic effects of immigration only get evident after the whiter older cohorts have passed away. Germany may be quite a different nation in not that many lustrums.