There are practically no Atheists (at least no admitted Atheists) in the federal government, or the state governments for that matter. You can't lay that problem on them. So, whether you mean to or not, you seem to being saying the Theists are on the other side of that war fighting for immorality.
That is where you are wrong. Those in government purport to believe in God, but then tear the Ten Commandments out of courtrooms, take down nativity scenes on public property, champion abortion, call up gay men and congratulate them for their coming out of the closet, forbid children from praying in schools etc.
They do this all in the name of the separation of church and state. So essentially we have laws devoid of God, so how is this different from an atheists approach? It's not.
The issue, whether you believe in God or not, is free will. People choose to do bad things. No matter if you are an atheists, we all see this, even though we may differ on what we deem to be "bad". For example, the liberal godless elite of today see sin differently, even though they dare not call it sin. Those that don't recycle are wrong doers, or how about those who drive SUV's? I know, God forbid you are a bigot. At that point you shouldn't even be allowed to have a job.
Now it's time for people like you to face some facts. The Federal government passes around 40,000 new laws and regulations a year, all of which have NOTHING to do with God. So why are the doing this? They are doing this because they think we eat too much, drink too much, live in houses that are too big, make too much money, don't give away our money to the poor like we should etc., etc., etc.
Every law on the books is based upon some sort of morality. Unfortunately, each law also restricts our freedoms. As laws increase, freedom wanes. There is no way around it, so we should then pass laws with great trepidation. Instead, they pass them every second of every hour, as if through such laws society will improve, society will change, society will become somehow moral, that is, the morality they are selling at that particular time.
Those of faith have their particular church of choice to help teach a moral code, granted, by in large most ignore it and adopt the morality of the state. That is their choice.