Acid, there was never some happy sober Naziism that just happened to get out of hand as the years went on.
That said, what are the responsibilities of a good person living in a noxious society? It’s easy to say that you should oppose it with all your might, but it takes a sizable lack of self-knowledge to think that it’s obvious you would do that. In opposing the Nazi regime, you’d be putting your own well-being at risk. Maybe your own life, or your friends, or your family. But, by taking the middle course and doing nothing, you’re still supporting the regime with your tax dollars and labor and, perhaps more importantly, building up the implicit consent a society has for those noxious elements.
What if you’re drafted? Do you follow orders, or futilely resist? What if you’re involved in local governance–do you join the Party or resign yourself to removal or liquidation?
I think the typical WWII German soldier was not significantly more evil than the typical German of the time, and substantially less worthy of moral blame than the top quarter of people in German society. Most thought they were fighting Bolshevism and socialism. Though undoubtedly some also harbored nationalist and racist thoughts, you could say the same thing about some contemporary American soldiers. So what standard lets us stand in judgment above them?
A century from now, people will undoubtedly view some of the things we do now as absolutely monstrous and barbaric. I hope they have the empathy to understand that things are rarely black and white.