Bold of you to assume only teenage girls do. I know guys in their late 20s to early 30s (with university degrees!) who follow and agree with the likes of Andrew Tate or other such scammer nutjobs of the manosphere.
From what I saw, my take is that such people are like that due to lacking support. They lack a supporting family unit(poor relationship with their parents), they lack a caring social group(isolated, introverts, very few friends), they lack a caring mentor to show them the way on how to get out of a rut and improve their situation, so end up pray to easy manipulation of these fake gurus who help them fill that void.
Au contraire, this is now a popular content vertical/subculture- "tradwife" is the keyword you need to dig this stuff up.