@TootUncommon@mstdn.party early on that wasn't really true, I think; it was more widespread. But to your point we had a civil war (at least partly) about it, while Germany didn't.
I'm not sure how germane to OP this is, though – the point is do we teach our history honestly?
(I think we have a lot of room for improvement, but do far better than you'd think after reading this thread 😂 )