A recent study of developed countries by Gregory Paul in the Journal of Religion & Society published by Creighton University (a Jesuit institution, BTW), demonstrated that higher percentages of belief in "God" have a positive correlation with most trackable social ills (homocide, teen pregnancy and abortions, infant mortality, etc.) and a negative correlation with life expectancy (the less "Godly" the society, the longer people live).
Does this prove that "God" is bad for society? No, not necessarily. Although it does poke a big hole in the notion, an article of faith among the faithful, that belief in God is an essential foundation of morality and social structure. My guess is that rather than belief in God causing societal problems, increased rationality improves the ability of societies to understand problems and devise effective solutions unhampered by preconceptions or superstition. Strange as it may seem, rational thinking may actually make it easier to fix problems. Who knew?
One thing that jumps out at you no matter how you slice and dice it is how much of an "outlier" the United States is with much higher rates of most social problems and a much higher rate of belief in God than other developed countries. I mean, we're pretty much off the chart. At the least, with or without the God angle, perhaps it's time we in the U.S. get over ourselves and realize that we are no longer a leader in providing a high quality of life - or even the quantity of a long life - to our citizens and start learning a thing or two from other countries.
I don't expect true believers to give a damn (sorry, darn) about inconvenient facts like those indicated by the study. But those in the mushy middle who don't buy the old tales yet have been unable to let go of that last thread of a non-God god should consider evidence that countries dominated by those seeking rewards in heaven may create less than a Garden of Eden here on Earth. That particularly goes for progressives; rampant, runaway belief in God may be holding back progress in America. You've got more reason than ever to let go of the safety rope. We've got you. Together we'll tackle our problems as best we can and probably do a better job of it without the baggage.
Now I don't claim that the survey is definitive and neither does it's author, but it's pretty straightforward and surely seems worthy of further study. So here's an idea: Congress should fund research to determine whether promoting atheism would be an effective way to tackle multiple social problems at one time. If the study pans out we could create a lack-of-faith-based outreach program as a means to decrease societal dysfunction. All we need is to get one of the dozens of closet atheists in Congress to come out for long enough to sponsor the bill.