But why would they?
We're brutally, brutally mean to people like this.
Every time somebody dunks on a flat earther or their ilk, puts somebody down to defend the superiority of their own worldview, they've added a brick to the wall that keeps these people from feeling like they can rejoin society.
The first time they pop out of the cave, feeble amateurs in the world of normies, they slip up just a tiny bit and get their head bitten off. There is nobody there to to say "if you tried, we'd have you". For most of us, it isn't true.
It seems like few people realize that this is part of the residue we unwittingly leave on the world. That the cost of performative intellectual superiority, even if you're actually right, is the burning of rungs on their ladder back up.
Needlessly dunking on misguided people worsens a world that we ourselves are stuck with.
Be nice.