its the same as banning knives because they can be used to hurt people. we shouldn't ban tools.
When I see the old BuT FrEe SpEeCH argument repurposed to impinge civil rights I start warming to the idea of banning tools.
Alternately "Chemical weapons don't kill people, people with chemical weapons kill people"
I've had very little success mumbling "you are an expert chemist..." to test tubes and raw materials.
As a propaganda tool it seems quite effective, but for that it's gone from "woo free-speech" to "oh no epistemic collapse".