The more I think about the more I am convinced that the "Jews" depicted in the "Nazi" concentration camps where in fact Russians in the Jewish controlled Gulag or some other God forsaken Jewish controlled Communist concentration camp. There were many.
Because it would have been a far to big operation to fake all these images and movies with actors. The risk of exposure of the lie would have been far too great.
On the other hand filming Gulag and then have it presented as Nazi camps, very easy.