Earlier quoted context omitted.
Thankfully the political football is simmering down - I think we have mRNA flu vaccines in progress now, and attempts to stop that failed.
I was a conscious adult when all that was going down, so I can remind you, that on top of standard lunacy, there were legitimate concerns about safety of injecting something novel and untested to large parts of the population, genuine collusion to get as many people as possible injected, harassment that went both ways, and last but not least, there were many people who took one of the many vaccines and had life crush…
I think people with followings online got a ton of economic benefit from scaring people, the same as the rest of the news industry. Remember Upton Sinclair: "It is difficult to get a man to understand something, when his salary depends on his not understanding it."
The ONE thing I know of that survived study was the higher incidence of myocarditis in young men with Moderna, and provider guidance lists it as a potential side effect. However, the Novavax vaccine had the same myocarditis outcome without being mRNA, and the Pfizer mRNA didn't have that outcome.
It's very unlikely clinical trials would have exposed that issue, so even in hindsight, none of the concerns seem to have been legitimate.