Of course, but the law is a joke in practice (which btw is something I found typical of German law). It is very hard to prove discrimination and no immigrant would have the money, time and energy to pick such a battle.

What most of them do instead, (which is smarter than trying to fight a German employer in a German court) is they use Germany as a stepping stone. They come here, get a couple years of experience and move to a more welcoming country afterwards. And German bureaucrats and employers wonder why retention is so low.