I like to say that the US used to have "the marketplace of ideas" as a goal, but has now become "the cesspool of ideas", which isn't a good thing.
I don't know what the solution to that is, but I don't think lying is going to get us out of it.
I don’t believe in giving up on that ideal, but I think it’s a fiction in the sense that actually achieving any semblance of a “free marketplace of ideas” is a vastly complex problem we have no capacity to solve right now. Humans aren’t a collection of simple, isolated units, we’re a vast colonial fungus. We struggle to understand individual biological organisms, but we assume that all of humanity talking to itself will be a system transparent to study, that it operates on simple principles. Ask a skilled marketer if he or she believes in the free marketplace of ideas.
Solving the problem would involve building a completely different social system from the ground up. Since we can’t do that, and nobody knows how to start, what I’m suggesting is that people try to study the communication networks as they are now and the memetics people are responsive to and build, carefully and cleverly, narratives which will actually have the practical consequence of bettering people’s lives, and that they use the truth to figure out how to do that and what that narrative should be. It’s not really lies or the truth, I’m calling for a pragmatic attempt to use the extremely flawed communication channels at our disposal to do the best we can.