"This nothing to do with liberals."
That is factually incorrect.
Atheism, and, indeed, every notion that undermines, dilutes, or weakens faith in God, stems from the same source as leftism. Destruction of belief in God is one of the indispensible planks of leftism. This idea belongs to the left.
Skepticism and even outright atheism by themselves might not make one a liberal, but they do at least make one a substantially conservative person who nonetheless espouses one central principle of the left.
Further, an atheist conservative has in the final analysis no support for his beliefs beyond his personal preference.
"It about a non-scientific nut-job of an idea trying to pose as science."
For you, then, the idea that there is a Supreme Being who created the universe, all that is seen and unseen, by processes unknown and which may have taken billions of years, is a nut-job of an idea?
Wonderful observations!
Actually moral principles: an understanding of the concept of Right and Wrong, which goes beyond Approved and Forbidden.