QAnon, fascism, conservative ideology all have "social order" in common. QAnon of course drives it up to 11+, it's a full blown doomsday cult, with Trump being some kind of figurehead. And there's always something that threatens the status quo, their place in society. Immigrants, globalization, China, muslims, mexicans, antifa, gays, transgender frogs, liberal elites, uppity n....s.
Recommended long, but very insightful video: https://www.youtube.com/watch?v=JTfhYyTuT44
Naturally facts don't matter. You mentioned globalism, which indeed displaced many people from jobs, but this has always been ongoing. A hundred years ago this change was even more drastic. But back then this wasn't "weaponized". (Then the unions came, but then they too faded as technological changes dispersed big groups of homogeneous workers.) And now modern political parties try to play on these identities. (Mostly through candidates, as they locally present themselves, and naturally try to mobilize people.)
This is a good point. When Trump came to power populism was in full effect. There was Bernie on one side and Trump on the other of the same populism coin. Globalism, progress, etc... have left large swaths of the population behind.
I think many of these people know that QAnon spouts nonsense, but they are desperate in their personal situations. Healthcare is bankrupting people, they can't afford to send their kids to college if they can even afford kids, and housing has become out of reach for many. Until the downtrodden are addressed, QAnon isn't going anywhere.