Another thought: your argument about the entropy of the entire universe suggests another interesting issue, evidence of design in cosmology. The "cosmic anthropic principle" says that there are far too many coincidences in physics that all enable life to exist. E.g., if the charge on the electron were slightly different, or if the force of gravity were a little different, than we'd end up with a universe filled with nothing but neutrinos, or black holes, etc. The odds are very very long that we could end up in a universe of the kind we actually inhabit. Non-theists speculate that this is one of a vast number of different universes (most of which do not support life); theists respond that it's rather more logical to assume there is design in the cosmos. (A more traditional argument to design in the universe is the observation that the universe can be described using a few very simple, mathematical laws -- we would expect a rational Creator to so arrange things.)
So one can argue that life can evolve because God set things up with great care at the beginning to make it possible.