I agree, there are plenty of examples of societies with no religion (or at least no officially allowed religion) that didn't turn out all that well. Soviet Russia, communist china, north korea, cuba. Notice how those societies are not free? that's because some other form of control was established to take over for religion as a control mechanism.I think that is being naive to believe if religion were gone tomorrow the new vehicle for people to use to advance their politics will be good. There are plenty of godless ideologies to use as examples that change isnt always for the better.