Maybe. Even as someone who lost most of their family in said concentration camps, I'll reserve judgement until I find out their motivation. If they were there

Maybe. Even as someone who lost most of their family in said concentration camps, I'll reserve judgement until I find out their motivation. If they were there because the SS held a gun to their head and said, "help us build camps or we will kill your family", then yes, I'm going to forgive them. If doing plumbing at the camps was the only job they could get to feed themselves, then yes, I will forgive them. If they volunteered for the job because they wanted to kill Jews more efficiently, then I won't forgive them.