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This means that if a coelocanth of today has drifted far enough away from a coelocanth of 100 million years ago that they would be unable to mate, then the two are genotyped as different species even if their phenotypes are virtually identical.

That is exactly why speciation is totally insufficient to prove that evolution has occurred. If there are no changes in functioning, in abilities, in complexity, then no evolution has occurred because evolution requires increased functioning, increased abilities and increased complexity in order for man to have descended from bacteria.

No, this is not. I have already acknowledged that a substantial proportion of the 100 million BC coelocanth population will have undergone changes in functioning, in abilities, in complexity, and so on. The difference is that the progeny of those coelocanths would for the most part no longer look anything even remotely like a coelocanth. In much the same fashion, while some populations of prokaryotes have undergone evolution, that obviously has not prevented other populations of prokaryotes from remaining virtually unchanged. Those coelocanths which fit their niche remained in their niche; those which did not evolved into other species which evolved into other species and so on. For all I know, humans are the direct descendents of some primordial group of coelocanths....