The origin of life is not (and need not be) addressed by evolution. No matter how life originated, evolution would address its development after that point.
I disagree. Falsifiable predictions about the fossil record can be raised. For example, given the expected appearances and durations of existence of organisms, one would predict that fossils of humans and long-extinct organisms like trilobites or that fossils of modern birds and ancient pterodactyls would not be found in the same geological strata. So, one could test such a falsifiable hypothesis by looking at strata in different regions of the world for empirical evidence.
The scientific record is used to test the past in many fields. One simple example is the study of pollen cores in the sediments of lakes to understand the climates of the past. Different climates produce different plant species with different pollen morphology. The depth of the pollen found in the cores tells us how relatively long ago particular plants species lived and so tells us something about the climate at that time.
Any particular individual of whatever kind that was created must indeed have been a species of some sort. Are you saying a kind may be more than one species? If that’s the case, you would be saying that a kind that was specially created was represented by a number of different individuals of a number of different related species.
Consider the insect order Coleoptera or the beetles. There are about 400,000 species of beetles known worldwide. Did that order start with one species? if that’s the case, then the rate of speciation of new beetles from that one original beetle species is astronomically high, far surpassing what is conceivable. Even if the order started with a few species, it’s still practically impossible to imagine, given the time frame that creationists envision. Or even worse, did the order start just with a species of the entire insect class Insecta, from which all of the insects, including beetles, evolved in the time creationists say was available?
That’s part of the ambiguity and incoherence I see in creationism, which is why falsifiable hypotheses about creationism are not likely to be formulated.
As I said, the first part of your statement is not relevant to evolution. How life originated has been addressed by other areas of science, not evolution. But the development of different taxonomic groups from earlier ones is an area that is and has been studied by evolution, replete with falsifiable hypotheses. For example, we see hypotheses about the time of divergence of taxonomic groups, which can be tested by comparing the fossil record with genetic differences that have accumulated over time between the groups.