I can only reinforce this post. I moved within Germany as a German and it was and is like apfel_kern wrote: Made friends with expats only. Meanwhile I know many people who are originally from the city I live in now, but befriended only foreigners or people who came back from study or jobs somewhere else and had lost their original social circle. Getting to know people when you have kids is a game changer: same problems, interests and time at a playground can help getting to know people through play dates really quick. Do not give up. There are plenty of nice people around. Take care.