We've had many of these trust-destroying events in the past, before the Iraq war, but their effects were limited. What we didn't have back then, and what I'd argue brought us Trump and RFK Jr., was a world-wide information-distributing machine and a megaphone in every idiot's (and malevolent foreign actor's) pocket. We're here because anger, belligerence, conspiracies, distrust, hatred, and ignorance are being deliberately spread on Internet platforms by 1. adversaries motivated to destabilize the country and destroy its institutions, and 2. domestic idiots who help to spread it (and make a buck off of its popularity).
I used to think that "platforming everyone" was a noble goal, but we're seeing the results.