First Cause Argument and Evolution

If you believe that everything has a cause, such as the universe emerging from a singularity that exploded because of a quantum instability creating a phase change moving toward inflation; the premise is logically valid if instead of infinite regress there is a terminal point at something eternally existing able to issue a first cause for a universe to be and become.

Biological evolution is nothing more than a bracketed portion of the history of the Universe and not relevant in regard to the first cause question.