Obviously there simply is no objective usefulness to the ToE since all I'm getting is weird evasions.
Deny, deny, deny. You're the one who's evading the objective examples that you've been given. You can deny the truth until the cows come home. Your evasion won't have one iota of effect on the usefulness of the Universal Common Ancestor.
Re: Another useful application of evolutionary theory
To the extent that this is going on it is about microevolution, period.
Read the OP: "I've been looking for a practical use in applied science for the information that all life on earth evolved from a microbe that existed billions of years ago...." It clearly is NOT about "microevolution of kinds", as you would call it.
Sure way to win an argument is by talking technical gobbledygook.
When I had an internet connection at home, I was connected to the World Community Grid, which uses the idle time of members' computers to do tedious scientific calculations. They had mine doing protein folding.
Proteins are large, complex molecules that can fold into various shapes (think Tinker-Toys). The parts that "stick out" determine how the protein interacts with its environment, so the different shapes that it can have are very important, particularly to medicine.
We understand your difficulties with vision, so maybe you can't learn these things for yourself, but it's downright stupid of you to proclaim something "useless" when you haven't even bothered to understand it.
I was wondering if anyone could provide an example of use for UCA, but it's becoming increasingly clear there are none.
There are none that you will accept - but your acceptance is irrelevant.
Which makes the theory of evolution the scientific equivalent of a blank bullet - it makes a lot of noise and smoke and attracts a lot of attention, but it doesn't actually do anything.
On the contrary, UCA is only one small part of ToE. You're saying the equivalent of, "Since there is no concrete use for the manufacturer's badge on a car, cars are useless." That's a very silly conclusion.