You're making a jump from God to morals. I'm assuming with your statement that without God, there would be no moral, no morals = no laws, and therfore a breakdown in gov't. If I'm wrong, please correct me.
Your first assumption is "no god=no morals". Guess what? The two are not related dependant upon each other.
The "bible God" lacks morals. If we relied on him for our sense of "morality", we'd happily condone genocide, slavery, killing of children/women/elderly/animals in war, blood sacrifice, etc.
Please don't tell me you think agnostics and athiestics lack morals/ethics.