Anything that “We” all know for certain should be questioned.
The most dangerous beliefs are those considered “settled” or “consensus”. Those are the ideas that close minds, kill curiosity, and end exploration.
Those are also the ideas that have people supporting the harassment, caging, and killing of dissenters.
It doesn’t matter whether the consensus idea is true. What matters is not shutting down those who disbelieve it, no matter how crazy they are. It’s cowardly, unbecoming, and evil to do so. It reveals a thoughtlessness and lack of imagination, curiosity, and compassion.
As Milton said,
And though all the winds of doctrine were let loose to play upon the earth, so truth be in the field, we do injuriously by licensing and prohibiting to misdoubt her strength. Let her and falsehood grapple; who ever knew truth put to the worse, in a free and open encounter? Her confuting is the best and surest suppressing.