Thank you for posting this Terry. I will watch the videos later.
My instincts are with Weinstein on this. It's a topic that Jonathan Haidt addresses in his book The Righteous Mind — Why Good People are Divided by Religion and Politics. Religion has been a powerful force for in-group cohesion. How we are ever going to replace it is a mystery.
Dawkins is mostly brilliant on Evolution and mostly facile on everything else.