Watch this and read about game theory, Sun Tzu, Machiavelli, etc. I live by my own morals without gods. Most of my "morals" consist of my emotions plus the physical, financial, academic, etc strategies of getting ahead in life. But even living the most "selfish" life possible, you have to be good and do good to others if you want to succeed so I consider a lot of what we think of "morality" as bullshit that cops to people's emotions. Even without those emotions, by just using reason I seem to wind up making just as moral and compassionate choices as I would otherwise do.
I think whatever theists say that are people that are at least somewhat intellectually and emotionally stunted. People that fear testing the waters because they don't have the tools to successfully sail them and to make up for their insecurities, they lash out at others. They fear what they don't know and so they make laws and rules so you can't complicate their lives with visions of ankles, boobs, violence (if you remember the havok the christians of the 90s caused regarding video game violence, you know what I mean) or whatever the flavor of the week is that offends them.