The thing about the Nazi's is it wasn't just the obvious "Jews are bad" stuff. They really framed themselves as being scientific and holding an interest in not just making the nation better but humanity itself. They did a lot to project strength, progress, modernization and scientific thought and inspire people to get behind them.
Of course, it all blends together... There was insidious breadth in their messaging... They would do things like go to elementary schools and cherry pick the most pathetic and weak (who "happened" to be stereotypically jewish-looking) child and then pick a child known amongst their peers to be athletic, intelligent, and handsome/beautiful (and who "happened" to be Aryan-looking) and then they'd talk 'scientifically' about the distinctive features of the two races, and the physical differences between the two children, espousing the 'good genes' of the Aryan looking kid.
Even today, in 'more virtuous' societies, people love to think of themselves as superior to others in some capacity. It's less common to emphasize the inferiority of others, especially using race as a basis, but at the end of the day, we're talking about basically the same human tendency toward contempt.
Of course, it all blends together... There was insidious breadth in their messaging... They would do things like go to elementary schools and cherry pick the most pathetic and weak (who "happened" to be stereotypically jewish-looking) child and then pick a child known amongst their peers to be athletic, intelligent, and handsome/beautiful (and who "happened" to be Aryan-looking) and then they'd talk 'scientifically' about the distinctive features of the two races, and the physical differences between the two children, espousing the 'good genes' of the Aryan looking kid.
Even today, in 'more virtuous' societies, people love to think of themselves as superior to others in some capacity. It's less common to emphasize the inferiority of others, especially using race as a basis, but at the end of the day, we're talking about basically the same human tendency toward contempt.