Hold on a second. Are you saying that if there were only ONE NAZI in Ukraine it would be justification for invading that country? Because that is the justification for invasion here: DeNAZIfication.
Your bandwagon fallacy no longer applies when that much of a POS bullsnot argument is used as an excuse to invade a whole country. Otherwise, Russia could invade us just because there are 20 NAZIs in Idaho.
Uh…no. “300” references the number of Historians (you included the title), not the number of Nazis.
If it were a convincing argument, one would suffice. To be clear, I mean one Historian, not one Nazi.
The Bandwagon Fallacy observes that more “experts” (in this case “Historians”) doesn’t make the argument any more compelling.
Also see: argumentum ab auctoritate (Appeal to Authority Fallacy)