Yeah, it's been a slow decline over many years, and it's been painful to watch, but it's also very hard to turn a ship as big as the US.
I think it's unfair to blame present-day Americans for the current state of affairs, when millions of Americans in 2003 protested the Iraq War and didn't get any result, when the DHS was already cracking down on peaceful protests in 2012 and since then it's been 4 years of an openly fascist government who'd never be swayed by protest, followed by 4 years of "healing" (but mostly pandemic). And I wouldn't say the Americans have been complacent in the last year, it's the most chaotic shit I've ever seen, with already 2 political assassinations and a string of massive protests.
It's easy to think people did more in the past, but we only get the highlights in the history books. An assassination defines a decade. It takes years of organizing to get a victory.
So don't blame the current generation, America's been pretty fascist for 25+ years and very resistant to change. I just hope this is their opportunity to change it for the better.