A large portion of every sector in Germany (aside from maybe the parliament) is immigrant workers, because Germany has a lot of immigrants (2nd highest foreign born population in the world, after the US):
And particularly a lot of immigrants that come to Germany for work as it has a strong job market, relatively liberal immigration policy & a very old native population.
https://en.wikipedia.org/wiki/List_of_sovereign_states_and_d...
And particularly a lot of immigrants that come to Germany for work as it has a strong job market, relatively liberal immigration policy & a very old native population.