A bit of self-promotion here, but check out !fediverse_vs_disinfo@lemmy.dbzer0.com if you want to stay up to date on recent disinformation campaigns. It’s obviously not going to solve the problem, but it’s one more tool to help identify and fight the disinfo peddlers.
There a whole article about Russian disinformation on this topic here. They certainly did have a pact with the Nazis. Your argument is basically “it didn’t happen, but if it did then it the West forced us into it” which is a 100% classic disinformation line. It’s like when Putin says there is no war with Ukraine, but if there is it’s because the West forced us to do it.