You failed to investigate your own question. They are all Jews. Read their testimony carefully, there are plenty more examples. You asked for information and got some. No one has claimed that millions of Jews were sent to the Kaiserwald, specifically Mezaparks, but a trend noticed over many years, and many many more names given above is that Stuthoff is the return point for these Jews.
It was also mentioned by a German, previously cited at RODOH, the Jews and other workers lived in cardboard huts in mid winter. I bet you cry when your power goes out for an hour in winter.
The millions went east, many could not handle it, some shot for various infractions, they went to Belarus, Latvia and Ukraine all in work camps of one sort or another. It is interesting with you that Korherr lied about Jews going East but is correct about his analysis of the number of Jews in Europe.
You trust this man when it suits you. He also used Sonderbehandlung which is the term for 14f13.