The matter of the discussion is evolution as a tautology ...
No. To be precise, the discussion is the notion of "natural selection" (once popularly expressed as "survival of the fittest") as a tautology. I've never once suggested that "evolution is a tautology." I'm only arguing, from a purely logical and philosophical standpoint, that it is quite ridiculous to argue against the conclusion that: those are selected who best reproduce, or stated in the inverse, those who reproduce best are selected. Delusion Boy hasn't done it on this thread. Neither have you. I'm quite confident that no one can.
Some would say opposition to evolution is a classic Mormon trait ...
I'm haven't been arguing against evolution, per se. That's your mistake, and it is incident to your chronic inability to view things from a macro perspective. I accept "evolution" (subject to certain definition of terms) within specific parameters. I've never argued otherwise in any venue. I have, however, and will continue to dispute the evidence for "natural selection" as the dominant mechanism (or even necessarily a mechanism) of evolution. I consider it logically absurd, and entirely unproven.
That said, when it comes to my acceptance of "evolution," I've consistently qualified my arguments by noting that (and this is spoken with some degree of authority, inasmuch as I've been programming computers for over a quarter century) the double-helix is, in my judgment, quite obviously a sophisticated EPROM* whose intelligent design permits the reception of instruction sets, and which can even adapt/instruct itself within certain limits.
You are a classic example of ignorance and dogmatism, that's all I meant.
What a coincidence! That's exactly what I've meant, too.

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* = see also PROM and EEPROM for examples of this type of technology, of which the double-helix is simply a much more sophisticated variant.