"Neo-Nazis are typically democrats." lol now you are just wrong. Do these skinheads look like Democrats? They could be Bikers for Trump or Proud Boys, but they ain't turning up to any BLM marches except to crack heads.
The first genocide was in Armenia, 1915-1917, well after the Founders.
https://en.wikipedia.org/wiki/Armenian_genocide
I'm not talking war crimes and atrocities. Obviously those have been around forever. I'm talking systematically destroying people on the scale of millions. That's a product of the 20th century and can only be accomplished through the dehumanization of hate speech. It's been researched - every genocide that has ever happened was preceded by labeling political enemies as "maggots," "flies," "cockroaches," etc. It's happened again and again, and it continues to happen today. This isn't some abstract thing.