Yeah, back in my Atheist days Carlin was the man.
He makes a lot of logical points,
He was a smart guy, and a great comedian.
I also agree that there are BS religions.
Though I am Christian, I can't dispute the fact that there exists distorted sects of Christianity.
As far as why God does what he does, no matter how much we read,
the simple truth is that we will never know, at least not in this life.
All believers can do is use what we have, and speculate on what still remains a mystery.