Hyper-skepticism and Hyper-credulity

What is the connection between: Bart Ehrman (athiest), Paul Tsoukalos (guy from the History channel), and certain Catholic apologists on Facebook?

Their reasoning is all along the lines of:
"I can't trust the Bible, therefore X"

Where X is:

1. Mud+time equals man
2. Aliens are responsible for everything in history
3. I can only trust the Catholic Church

It's really a variant on "Anything but God" (anything but the Bible)