Indeed. Darwinism is about evolution, and does not touch on Origin of Life - only what happened once Life had already been sparked into existence. A lot of people have mixed the two up, especially religiously because of failing to recognize that difference.

The reason phylogenetic trees can be so thorough is because evolution is real.

First God created life, then God continued to create life. Life evolved just the ways cars and airplanes have evolved -- in reaction to the environment and greater understanding. Once roads developed painted lines the cars could adapt to add painted-line-sensors, for instance.