people will say oh but we all believe things on purely spurious, often irrational things.
but no, no these guys are different. as someone said, their arguments start on secretative, "evil behind things" premises that don't even exist. so they will construct a whole world view on an imaginary ghost, mapping out from there. see also the rankest of the covid deniars, with them there was always the "hidden enemy", based on vapour, nothingness. and they lack the intellectual humility to step back, and reflect. political extremists can get like this too but they will still try and map onto reality somewhat...
i can also quite imagine that these guys are a nightmare to live with too, iyswim.
as said many times on here, when my mate disappeared (and never returned) down the rabbit hole, i went on a deep dive into their communities and boy it is fucking wild. absoloutly perilous. there is nothing unfair at all in call them the lunatic fringe and i am the type to use such terms wisely.