You could also elect me as your benevolent dictator, I'll be happy to bring the misinformation to an end, but the lie I'd tackle first would be that this has anything to do with democracy.
Treat the propaganda campaign like the war it is - and arrest those who are serving as foreign actors for treason.
The earlier people are finally willing to admit Russia and China are waging a war against the whole Western world, the better.
The big multipliers - #45, Alex Jones, Fox News, Newsmax, OANN - are publicly known, as are most of the people spreading the stuff on FB, and can be taken down. No need to resolve to a surveillance state, just public information is enough.
To what end? What is their motivation? They’re evil cartoon villains and hate our freedom? What’s their gain?
For Russia? Being able to rebuild the Soviet Union. Just look at Crimea, or read https://en.wikipedia.org/wiki/Foundations_of_Geopolitics which is essentially a playbook of what Putin has done.
For China? World domination for Han Chinese, nothing less. They are taking over entire countries by "debt relief" aka loan sharking, and leaders who don't want their "investments" simply have their assets taken away by force like the Philippines.
Both can only follow through with their plans if there is no united opposition against them. Europe is falling apart on a national level with nationalist, often Russia-backed anti-democrats spreading discontent and hate, and the US is collapsing in ethnic and class war.
Hasn't the USA been aggressively exporting its values and memes (ie. Engaging in cultural warfare) for almost a century now?
I mean you want the “public” to be able to “challenge” the misinformation.
But fundamentally the public has N number of compute units per day and the attackers have N^N compute units.
This is throwing unarmed citizens directly into an army trained to crush unarmed citizens.
The attackers are DESIGNED with the awareness that people will be having this argument on hackernews.
Which one? Plenty of candidates depending on which part of the political space your views lie in.
Is it the misinformation campaign that Trump won the last election? The one that says third world immigration is good? The one that says Democracy is good? The one that says COVID is harmless?
If there were some Oracle that could tell us what is true or false then this wouldn't be an issue in the first place.
An early tidbit that may have been lost with deplatforming was that Euro leaders also disagreed, citing that only the state could be trusted with that power. However, the US Constitution mostly prohibits that route and it's left to private companies to make up their own minds about what content they want to host.