No, Micaiah, you still have it wrong. The theory of evolution says nothing at all about how life started. That is a different subject altogether, and yes, right now, it is all speculation. But it has nothing to do with evolution itself.
Once again, we see a strawman version of evolution set up and then knocked down.
But what about evolution itself? Your first paragraph has it basically right, and you agree with the mechanics. All you seem to disagree about is whether it could be the cause of a sufficient development to explain all of our current species and those that came before (considering that the vast majority of species that have ever lived on this earth have been extinct for a very long time).
We have the evidence of the fossil record and the dating of those fossils that fit the model of evolutionary development amazingly well. We have the new genetic information which shows the connections between the various living species that matches up with what biological evolution would expect. The bottom line is that there is no good reason NOT to accept the theory of evolution as the best explanation for the development of the species on this planet other than a literal reading of Genesis. That is why 99.84% of scientists (which obviously includes the vast majority of Christian scientists) DO accept it. It is a very, very rare case where someone thinks it is not the best explanation without having thelogical reasons for doing so.