Another word for this religion is Monism. Monism was promoted as the "religion of scientists" by Ernst Haeckel and even Ernst Mach. IIRC, Kaufmann is a monist too -- he seems to have adopted that in recent years. The label "Monist" has gone out of fashion though, probably because it was associated with so many lunatics. So now they don't call it anything, or if they do call it something, they call it "science". Here are some examples of classic Monist thought:
The Evolution of Mind, Hardwicke
The Relation of God to Nature, Le Conte
God as a Gaseous Vertebrate, Haeckel
Science and Christianity, Haeckel
Evolutionists demand that you throw your religion in the garbage and adopt one of three world-views: Deism, Atheism, or Monism. Pick one.