Humans need to act. In order to act we need to believe that our actions are actionable. Anything, anything at all, that leaves us unable to act is a threat to our survival. A bear jumps out at you. Being unable to act because you don't know whether to play dead or run is deadly. Being unable to decide whether to wear a mask or not is deadly, even if both choices are both right or wrong. Maybe not said well, but when you consider all the actions you take in a day and what would happen if we could not decide.
As a side effect, I wonder if simply voicing ideas or bringing into view concepts that challenge the certainty we each require in order to get through a day, is in fact threatening.