I disagree with you. It’s important to understand the perspectives of people actively involved in politics. Even (perhaps especially) those with fringe beliefs.
In the past, I would have agreed with you. But I've seen that argument used in bad faith so many times since 2000, I've come to see it as an excuse to introduce bad ideas and move the overton window. Every oligarch seems to be in favor of absolute freedom of speech until they control the media in question, then it's hard right for thee.
See that's the thing: bad faith requests for presence in the marketplace of ideas almost always more the discourse towards authoritarian views, reactionary and racist views. Smashing it metaphorically means that monarchists and authoritarians flood the marketplace with garbage.
We as a society still have the idea that we must protect ourselves from socialist and communist views, but we have no similar immune system for reactionary authoritarianism.
Socialist, communist, and reactionary views should all be equally allowed, along with bizarre views like Posadism and whatever Alex Jones believes.
I want to see a debate stage with Haz Al-Din, AOC, Ezra Klein, Thomas Massie, Curtis Yarvin, and Nick Fuentes. Let the best one win.
> We as a society still have the idea that we must protect ourselves from socialist and communist views
And this is why only reactionaries gain a foothold. Powerful people benefit from it, so reactionary views are let in while the rest of the “window” remains intact. Smash the window.