Its been a long slow boil. And Nazis were only part of the problem. In the early 1930s many businessmen and Republicans in the US plotted a Hitler style coup against FDR. They did worse than Hitler, but escaped most consequences. And over the last century quietly plotted and built. Here and abroad. Fostering the "right kind" of fascism. Theirs.
It probably would have gone on a little longer. Because I don't think they were quite ready to actually try to coup again. But they've been socially engineering a new class of supremely manipulable Voters who lack any critical thinking skills. However a childish malignant narcissist managed to get the attention of that tool. And stole it from the Republican fascist. Basically largely spoiling the plot. And causing them to have to move before they were ready.
Also the ability for instance Global and often still largely Anonymous communication made propaganda easier and cheaper than ever before. The old style leaflet drops over territories were never very effective. And even radio broadcasts or easy to thwart. Now enemy Nations only need to pay a few people for online shitposting in hot beds lacking critical thinking. And they can turn their enemies people into their own tools.
Short version: the Nazis lost but the fascists won.
WWII basically ended in fascists vs fascists - Nazi Germany pulled a lot of their ideas from the US and before Pearl Harbor the US stance was ambivalent. They thought Hitler had some good points, but it would be OK if he lost.
Definitely. In a lot of developing countries with basic internet access these people can actually make good livings doing that. As long as they're skill in the foreign language is adequate enough. Though today a lot of that is being taken over by basic low-end generative machine learning models. Something else false information faster than it takes to debunk it.
Not unless you live in a country with a low standard and cost of living. And not likely even then. Because even at a Payday they generally work ed for larger businesses and weren't a freelance Craigslist sort of thing. That and here in the United States there's too much free competition to really be effective for them to pay anyone over here as well.