The death camps were not just for jewish people. Polish people also filled death camps. How is identifying a death camp where there were Polish people as a "polish death camp" insulting to anyone, or factually incorrect?
Because calling a death camp a [insert name] death camp is an indictment of those running the camp, not of those housed in the camp.
Thus, a 'Nazi' death camp indicates the Nazi's were running the camp, in the same manner that calling it a 'Polish' death camp is saying that the Polish were running the death camp... which they obviously were not.
Do you seriously not understand that being even accidentally compared to the Nazi's in regards to running a death camp, might just be a little upsetting, insulting, and factually incorrect???