I just don't understand why some leave and embrace other wacky shit, or remain in the umbrella belief system of Christianity etc.
It's like asking why a person still marries after going through a bad divorce. People leave a cult but don't necessary abandon the belief system. And nowadays everything is labeled as a "çult".
Religions work differently for different people. Some people find solace in it and are not concerned about the science behind it. In the end, you do what makes you happy and you are not obliged to explain or defend your religious stand to anyone.