Even the Nazis weren’t “a whole nation of genocidal maniacs.” In both Israel and Nazi Germany there is/was opposition to the atrocities committed by their leadership, just not enough. In Israel in particular “do you support comically evil thing” polls tend to get 60-80% support, except the Iran war which at its outset had 93% support. That’s not a whole nation of genocidal maniacs; that’s a nation of mostly genocidal maniacs.