Nazism wasn't just "jews are evil", it was a whole race-based culture system. They had a whole sliding scale of purity, and they were absolutely adamant on the idea that "race made destiny". and it was only because of their German race that they had a mandate to wealth and power. Sure, there were
supporters who didn't believe in the race aspect, and some who called themselves Nazis and didn't believe in it, but it was an integral part of it. It wasn't "Blah Blah Blah, Oh and we really hate jews", it was "We can take the foreign racial oppressors out of your life and reassert your rightful place in the world". You couldn't be knowledgeable about the Nazis and not know how important race was to them. Race was their clarion call, their answer to everything. It's less "pro-immigration republican", and more, say, "anti-corporate republican", or an "anti-constitution republican".
Nazism, or at least the actual theories of Nazism, literally was
basically organized racism. It was racism as a refined ideology with tenets and pseudo-science and political backings. It was the nationalism, the "work together to support the German state!", the perceived right to conquer what was rightfully the German people's. To be sure, many who supported were simply happy about the many, many positive changes the Nazis had on their collapsing country. But they were voting with their stomachs, and you can't call them believers in anything then success and a dictator's charisma.
That is why Nazism is evil. There is almost nothing you can say in defense of it. It was by nature backward, cultish, violent, hateful, prideful, nationalistic to an absurd degree, regressive, pseudo-religious, pseudo-scientific. It was all of modern racism and hate culture rolled together, forced into tight marching order, and put in charge of a declining country in an hour of need that no one else would heed. It's virtues and successes are only outgrowths of racial theory: Any pride in your country was because of your proud race, and honor came from your own noble line. Any stray virtue of fascist theory there might have been was instead corrupted by racial theory.
Nazis didn't simply hate jews. They are the Jew-haters. They deigned themselves anointed by god to eradicate Jewish blood both from within and without. They created elaborate formulas to determine how Aryan you were, and had another for how contaminated you are for having a Jewish grandparent. They sent expeditions to distant areas where Aryans might have ended up. If I may be so bold, they
are racism.
Wikipedia has links:
Nazism Nazism and Race I particularly urge you to check out the general Nazism page, where they describe as "a form of fascism that incorporates scientific racism and anti-Semitism"