"Move 'em goal posts.
You can believe the Theory of Evolution or not, and that fact has no effect on science.
Actually, I believe that the ToE provides the most coherent explanation for speciation. My question to you is, how is the ToE falsifiable?"
I've moved nothing, nor do I have any power to do so.
As for falsifying evolution, it would be pretty simple. Find a fossil of a mammal before the advent of the dinosaurs. Or, better yet, find a fossil of a modern horse at the time some of its precursors were around. That would do it, and instantly.
There are other well-recognized falsifying methods. Just search for falsifying evolution and read.
I am not in the biological sciences. I'm an amateur student of evolution. So, I can't answer your detailed questions.
I do know, however, that the Theory of Evolution has never had anything to say about the origin of life. There are scientists trying to figure that out, but they're not evolutionists.
As you say, evolution is the most logical means of speciation, whatever your beliefs might be about the origins of life.
Evolution DOES attempt to say that life sprang from non-life in pre-biotic evolution. It claims and very dubiously, that while there was no O2 on earth, the waves washed up little bubbles and DNA jumped inside and began life. Then, after enough CO2 breathing animals were alive excreting O2, the atmosphere filled up with O2 and the animals mutated to O2 brething animals.