I know we aren't going to ever agree, but this beyond hyperbolic. To even say that most canceled people's careers have not suffered one bit is just astounding. People get fired over tweets that aren't even that controversial. Mel Gibson got off the hook, whatever. But Average Joe's and Average Jane's also fall victim to 'cancel culture' too.
"Shor tweeted out an academic study by Princeton political scientist Omar Wasow that demonstrates how during the 1960s, while honest-to-God riots resulted in a decrease in the vote share for Democratic candidates in the following election, non-violent protests actually increased it. An uproar ensued, with liberal critics alleging that Shor was indifferent or even hostile to today’s racial justice protests. Two weeks later, he was out of his job at Civis Analytics, the left-aligned data science firm where he worked as an analyst" (https://www.politico.com/news/magazine/2021/06/05/cancel-cul...)
This person was fired, for tweeting out a study, and nothing they did was egregious.