It's not, actually. Fire is much better, and even alcohol is preferable. That's why there's very little open-air surgery.
> It is not wise to pretend that an opinion that you do not want just simply does not exist.
Reality doesn't support this idea. Every single country except the US has more stringent limits on what's acceptable speech. Yet among democratic countries, only the US has para-military right-wing terror groups in almost every state, and no country comes close to the dozens of deaths every year.