The "marketplace of ideas" is an imperfect concept that inherently magnifies oppressions. Who has the time to edit articles? What sources are reliable? Bias must exist in any attempt to describe the world. And yet, the idea that we should attempt the task together is inherently radical.
And, the idea that "everyone who can be bothered" should just hash out the definition of everything turns out to be too woke for most fascists. Even with all the built in advantages conservatives can't compete.