The issue of whether or not 1920s Germany is a good analogy for the United States in 1920 is prone to finding details that don't line up and then just arguing those details. The issue is that a political group is willing to undermine constitutional and democratic (note the small D) norms and laws in order to extert greater control and consolidate power. This is clearly not the first time this has happened in a country, and the details unfold differently both in timespan and detail each time. However, the threads of casting an opposition group as the "other", intentional use of disinformation, erosion of social norms, plays to nationalist identity politics, and intentional placement of people in positions of power based on loyalty rather than qualification is simply the rough outline of the common playbook. Actions that play to the insticts of the base and disillusion the opposition are the best and most effective things that Team Trump can do to win another election. Purging voter rolls, sowing division among the other side (Bernie was robbed!, DNC is so crooked!) will be mainstays of the GOP organizations and proxy groups for the next year. It is outrageous and we, as citizens, should be outraged regardless of how well it fits the political template of some prior decade of Germany or wherever.
I think this analogy still fails, and keeping everything super vague is just an admission that the analogy does not apply.
For example, Trump has refused Congressional subpoenas based on executive privilege and is generally doing everything else a president without a House majority would do. Democrats are still issuing subpoenas, conducting investigations, and passing progressive legislation. Hitler dissolved the legislative branch (at one point), made himself Chancellor, burned down the Reichstag, and used minority rule to pass the Nuremberg Laws and other political crimes. See how they are different?
Regarding “sewing discord,” I recall a decade ago Democrats talking nonstop about a divided Republican Party when the Tea Party was emerging. “They don’t have a platform,” “They aren’t united,” “They don’t represent their real constituents,” “Romney was chosen by the party, not the people,” etc. Republicans doing the same now to what is transparently a divided Democratic Party is no different.
There simply is no comparison, and making the comparison says a hell of a lot more about the accuser’s state of mind than it does the accused. It’s such a remarkable afront to actual history that it requires you to take the accuser’s overall veracity into question.
And honestly, if you are worried about Trump leaving office, you’re silly. Yes, he will probably pardon a bunch of people, and he will not have any sort of transition plan (because he’s pretty incompetent at this type of stuff), but he will leave. Calm down.