“Never believe that anti-Semites are completely unaware of the absurdity of their replies. They know that their remarks are frivolous, open to challenge. But they are amusing themselves, for it is their adversary who is obliged to use words responsibly, since he believes in words. The anti-Semites have the right to play. They even like to play with discourse for, by giving ridiculous reasons, they discredit the seriousness of their interlocutors. They delight in acting in bad faith, since they seek not to persuade by sound argument but to intimidate and disconcert. If you press them too closely, they will abruptly fall silent, loftily indicating by some phrase that the time for argument is past.” - Jean-Paul Sartre

You are arguing as if the two sides are acting in good faith. Authoritarianism almost always isn't. Greed and corruption is is inherently tipping the scales unfairly against the fair system to be imbalanced against the good actor.

You can see it again and again in the success of voter suppression acts and the deceitful tactics played by authoritarians.

Arguments only work when both actors respect good arguments.

It's not about outlawing them, it's about not giving them a platform allowing them to rise, like the current major media platforms are doing right now. Social media should be held responsible of the content they publish.