[staunch]

Techno-optimists created the modern world...

You say you want to shutdown "trolls" but you surely also want to modify the definition of troll on an on-going basis.

The pessimists think they can't win on ideas alone so they resort to using force against the "trolls" to ensure victory. Harassing, deplatforming, doxing, getting them fired, boycotting, etc.

The optimists (see: MLK Jr.) know humans are pretty great and, given sufficient time and information, the good ideas will win eventually.

If you actually care about your society you should be engaging "trolls" and trying to understand them. And you should be trying to convince them they're wrong, if you can. And if you can't, you should look to others that can.