Everything you say here is true and I think you hit on something at the very beginning when you said:

While it is perfectly normal for a child to adopt the worldview held by their parents without a lot of critical analysis, what happens when that kid grows up?

I think it may be normal that that happens, but it isn't always right. Kids form their thoughts and beliefs early on and snapping out of a belief systems that doesn't necessarily work for them is not easy to do. That's the subconscious reaction they have later that you also mention. Then what happens is that their tribe becomes other people who are are not thinking in their best interest either. Sadly, THESE are the people I want to reach, but they don't listen to people like me. 😂