Human beings can and often are extremely competent in some domains while simultaneously being highly irrational, misinformed, or just ignorant in others. Then you have to consider ideology and social conformity which can both bias people toward holding beliefs that don't make sense regardless of intelligence.
My overall point is that intelligence is only weakly related to logical validity or overall correctness. What and how you think matter quite a bit and those things are learned.
Tech is pretty bad for that.
I try hard to avoid that trap, we seem to live in a world where experts are undervalued and loud confident sounding people are listened to.
It's frustrating since people like simple answers and the loud confident ones are happy to pretend to give them.
"loud confident sounding people" is fairly self-evident
Can you share your definition of "expert", please? :)
The former get a lot of airplay (here and elsewhere). Finding the latter appears to be a whole lot harder.