German working class is displaced or has their salaries driven down by either Poles or Romanians working in Germany while their families live cheaply at home or by corporations moving factories to Poland and Romania.

You have no clue what you are talking about. I wonder why this sort of obnoxious reasoning always comes from Poles and never from Czech people for example.

I believe this is called competition, encouraged since the EU markets are open and freedom of migration is guaranteed. If it wasn't for those guys, you'll have migrant workers from Ukraine, or India or some other place. However, I suspect that before the Poles and Romanians came to DE, you already had quite a bit of migration from Spain, Italy and Turkey, isn't that right?