If the theories are truly insane then they should be innocuous anyway.

You would think so....but honestly if that was the case then IDW types and MLM grifters should be out of a career and that clearly isn't the case sadly. I go back and forth on this one a lot tbh. Generally I lean towards the free speech side of things, but less because of any sense of idealism and more a matter of pragmatism since I at least partially agree with Kyle kulinski that once you normalize banning or canceling people it can more easily be weaponized against the left.

...then again I also have been cynically disillusioned into thinking that power will do whatever the fuck it wants whenever the fuck it wants so honestly it's almost a masturbatory intellectual exercise.