I suspect @PandoraSocks follows US politics.
Its a common argument/myth in US Republican politics and the pro gun crowd/ lobby, that if the Jews had guns in 30's Germany that would have fought back and defeated the Nazis. The build up to the argument is that the first thing the Nazis did when they took power was take the guns. Therefore, by their odd logic, any gun controls the dems want are akin to the Nazis and that the US citizenry must be armed to resist tyranny.
It's a fallacy of course because the Nazis did not take guns away, and also there were Jewish armed uprisings, that were brutally put down.
This is one of the bedrock arguments made by the US pro 2nd folk.
Lauren Boebert, a repub congresswoman even expanded on it. She said if Jesus had owned an AR-15, then he would not have been crucified.
So when Trump says this, it is a dog whistle to the US pro gun folk, who also happen to be his base.