There is a gap that is missed. The level of naivete and ideological capture is hard to wrap your mind around. Example:

I am on the 91 in LA with a very smart woman, a friend. She is a TDS suffering democrat. It is early 2016, and I ask her who is she voting for in the primaries:

"Well, I really like Bernie Sanders, but I am going to vote Hillary"

"Really, why?"

"Because she is a woman, feel like I have to"

These people do not think logically. They do not view cause and effect. They are told what to believe and they believe it, no matter what. Some of these people are objectively very intelligent, but there is something missing. 

I can't say I fully understand it, but I have seen quite a bit of it.