Generally hazmat labeling is only required when there is a clear and present harm possible. So far, the only argument presented is “theoretically someone could abuse the this” which is very different than “if you’re exposed to this, you will get cancer.”

If a theoretical argument that the masses can’t be trusted due to the actions of a few appeals to you, then I imagine you also support banning encryption to prevent terrorism.

well no, their argument is more like: "Everyone should keep advancing the art of cooking, but just make sure they have a fire extinguisher handy" and your response is "Don't use fire to cook because there's a chance it could burn your house down".