Re: Existence of life
You’re making a rather absurd and twisted ontological argument that theists typically make. You’re trying to compare science to religion. There is no comparison. The two are not the same. Science provides objectivity via the scientific method and peer review, religion has no such constraints. Science does not require faith, it requires evidence and data. Faith is belief in the absence of evidence.
Religion only works when someone believes it, not science. Numerous religious texts speak of a geocentric universe. People believed it. There are still people that believe it, in spite of evidence. They take their religious texts on faith. Yet, regardless of what people believe and believed in ages past, the universe continues with the Earth as nothing more than a little spec in it’s vastness.
Science provides a way for getting the truth and understanding it. Science is a method. Your analogy is wrong.
There are several mechanisms by which evolution occurs. Some are: descent, mutation, genetic variation, genetic drift, natural selection, and co-evolution.
Here is a great resource: Evolution 101: Mechanisms of Evolution
Another issue, I’ll point out at the outset is: Theists have no counter theory. They have no counter evidence.