What would a non-flawed plan look like? One that results in everyone having "correct" beliefs? I'm pretty sure it would be a great deal worse than what we have now.

Nuking social media from orbit would be a good start. Any platform where what content you're shown is primarily driven by an algorithm is very suspect.

On that we can agree. Social media is a scourge. But it's also true that people believed crazy things before social media.

They did, but a more manageable dose. The current amount and effectiveness of disinformation is making society itself unstable.

Education could be a big part of it as well, not even teaching people what's correct but how to figure it out.

Income inequality isn't exactly helping either. Many people will believe any noisy asshole if their life sucks enough.