There's not a fair comparison between the two, aside from both types being evil. European camps lasted, what, maybe 6 years total? They were used to commit att

There's not a fair comparison between the two, aside from both types being evil. European camps lasted, what, maybe 6 years total? They were used to commit attempted genocide. They were hell on earth but those camps are done. North Korean camps have been around 40 years? They're used to "re-educate wrongdoers". They are a continuing hell on earth that the world allows to continue (unfortunately, due to realpolitik). Each is hell, but each is it's own kind of hell.