It also seems reasonable to me that if people lived by reason instead of faith, a great many tragedies would be averted, and an equal number of advances would be made, especially in human behavior. I do not claim this as a recipe for utopia, only for significant improvement. Any rational person would have acted entirely differently. Thus, we only need people to act intelligently. We can do without faith.
People can do without faith.
They can't do without reason. It is usually argued, of course, that we need religion in order to get humanity to behave and work together. All evidence is to the contrary. Religion has not notably improved human behavior. The pagan Romans were far kinder than the Inquisition Christians.