If there is no immutable, transcendent God, then values are transitory, hollow, subjective, and ultimately determined by sheer force.
So no big surprise to learn that the Secular Coalition for America is trying to leverage some power in the Capital.
This always kind of cracks me up. Folks like this have absolutely no basis to say anything about anything of substance, but stridently insist that they be heeded, and demand that those who do have an objective basis shush up. It's never about what should be done, it's about what should not be done.
Scott Ott targets this for his usual, deadly satire.