The evidence doesn't support your claim. The least religious countries are among the most stable and most peaceful:
https://en.wikipedia.org/wiki/Importance_of_religion_by_coun...Their crime and imprisonment rates are far below those of the US. Even on an individual level, the presence of non-religious individuals is assocated with a series of positive societal effects: https://www.researchgate.net/publication/227616923_Atheism_S...
Religion isn't necessary for public morality, and as America has shown, is often actively harmful. America is full of people who assume that they are good people BECAUSE they go to church rather than because of their acts. By and large, these are generally not good people. Instead, they're among the most judgmental and least helpful members of society.
To paraphrase Gandhi, "I like your Christ, not your Christians". The religious in modern society can't even be bothered to read the Cliff Notes of their own book, otherwise they'd be focused on helping the poor and remembering that rich people have trouble getting to heaven rather than going around promoting guns, no taxes, and slashing social safety nets.