During World War 2 every country fighting Germany was committing their own Genocides on home soil and/or abroad. They were not the "Good guys", they were simply defending their own interests because Germany wanted to expand. Those same countries also refused to take in Jewish refugees.

The Nazi ideology is more widespread today than it was during WW2, and a big reason for that was the allies took in the Nazis who worked in STEM fields and their families. They didn't just "see the light" and change their ways, they raised their families with those ideals in a consequence free environment.

The Nazis never lost because the ideology wasn't dealt with. If anything they are stronger now globally than they were during WW2, and a bigger threat because they just won one of the largest military powers in an election. Again.

But this time they have nukes.