> It's grossly unfair to take the eventual success of abolitionism to try to argue that there must have been less German opposition to Nazism than American opposition to slavery.
I was not taking that view, nor do I believe there was little opposition to Nazism in Germany. I simply do not believe such a large population can fully agree on one direction--in such unison, for any "cause" in such short time, whatever that may be. I was pointing out that the lack of visual division (as taught in modern times) could give it the appearance that it was unified. As the other poster pointed out, the differing time frames (length of time) is likely the cause of the visual discrepancies. I agree. I was in no way saying that there was no division, only that the appearance between the two, as taught now, could lead the OP to have the view that they were unified; unlike the general view of American slavery and the overt division that eventually appeared.
As for people that stood up to slavery, I was actually thinking of my ancestors I have been researching. One were first settlers and granted land in and around Jamestown, then the Carolinas. As the other poster mentions "most white resistance to slavery - in supporting the underground railroad was through groups like the Quakers", turns out the first American born generation (of my direct line) broke away from their slave holding prominent British family, were hard-core Quakers (involved in and charged in Cary's Rebellion) moved to the free states and became known in their area for fighting for abolition; including an incident/scuffle with pro-slavers looking for runaways in which he and companion were robbed, beaten and held/kidnapped for a time before being released.
So while it's a single example, the fact that there are only a few "known" examples with more well known people doesn't mean that it was limited--only that stories are hidden, unlike well-known stories of opposition to Nazi's (which I fully believe) and I am sure there are many more that never have surfaced, or only to a limited degree.
I'm not saying that opposition to slavery was instantly wide spread either, I get that. For one more obscure story, another line that married into a wealthy British colonial family of merchants, also had the second American generation forgo slaves and stayed in Va.--(I get that is shitty still, and after all the research, I understand better than before slavery and how it was simply the way of things at the time, but hindsight can be ugly)--they lived out their lives, working their own land until the Civil War where those generations (of age) fought for the Union.
TL;DR: The main issue I believe is the visual appearance in both early education and popular media, which would cause some to believe they were full in Nazis.