There's no need for an open mind, research, facts, other peoples points of view if you already have all the answers.
That's why cults/religions make sure to provide an answer for everything, even if the answer is "leave it in God's hands" or "we shall find out the answer to ______ in the new world" or "don't read that it's from the devil."
Some people desperately need an answer to everything, it's like a security blanket for the mind to have all the answers and religion is happy to provide - for a small donation. Ironically, it's this need for everything to fit into a neat box that cuts them off from really learning.
It's understandable to want answers but the truth is we will never have all the answers and there will always be stuff to learn - I now find that propspect more exciting than scary.