Xenophobia Explained

 It is important to remember in Germany, the USA and every where on the Earth where you find people: no hominids, then humans, evolved where they live now, unless you live in a specific region in Africa.  Second, the genetic difference between any two human beings is 0.5% of their individual genomes.  

Therefore, all the immigration problems, everywhere, occur when any group arrives in a new place and declares that nobody else needs be allowed in, because, "we're here."

We all need to recognize xenophobia as the enormous problem that it is, always has been, and engage the intelligence, that too many people are prone to denying, to work out a solution that will to be acceptable to a majority, because it will never be acceptable to everybody.

Working with the AfD, and their ilk, in Germany will always be as problematic as is working with the white nationalists in these United States of America. You need not take it from this WASP.  My ancestors arrived in the Americas about 400 years ago and (mostly) have not closed the door behind ourselves.

Working with others is always going to be working with someone who is very much like you; see the last sentence of the first paragraph.  If that doesn't make sense to you, you are the problem.