No, the Nazi party was The Government, a repressive, totalitarian police state, and even if there wasn’t a statute forcing people into the HJ, it was clearly something that was going to raise eyebrows and possibly get yourself or your family “deported” to the camps if any individual decided to take a stand and be a refusenik.
The KKK was a voluntary organization that one had to take positive actions to become a part of.
Here’s a better question: Do you think that anyone associated with the German American Bund before the war should have ever been allowed to hold elective office? How about anyone who supported the Nazis or whos parents supported the Nazis?
And you’ll have to demonstrate to me when/where Catholics systematically tortured, converted, or murdered Jews. And you can’t just point at Catholic countries - you have to show me where the CHURCH committed genocide.
Bund membership wasn't compulsory either.