@skibum609,
You're committing a logical fallacy. I agree with you that religion itself isn't responsible for any deaths, but the argument you're making is faulty: just because atheists have caused many deaths, that doesn't mean that religious people haven't caused deaths, too. Ultimately though, you're right, religion doesn't kill people; people kill people. More precisely, governments kill people. Beliefs aren't deadly, actions are deadly.
As for your other point about the alleged loss of religion leading to a downfall of the United States, I totally disagree.
First, this is still a very religious country. It always has been and it always will be. Rates of belief today are not really all that much different from rates of belief a hundred years ago.
Second, the least religious States don't seem like bad places to live (New Hampshire, Vermont, Wyoming, Nevada, Alaska, etc.), whereas the most religious States are nothing to brag about (Mississippi, West Virginia, Alabama, etc.).
Third, if we really do need religion to control the masses, then there's just no point in having the United States to begin with. This is supposed to be a free country.