No, I don’t think it’s okay. Yes, I know that if nobody supported them, the Nazis would have never risen to power in the first place.
But “corporation bad” doesn’t mean it’s always a matter of “I did this horrible thing to save a bit of money.” Sometimes there are lives on the line.
Please do not equate concentration camps with a spanking either. You don’t need to belittle the actual suffering they caused to make the valid point that cooperating with them is evil.