I guarantee you I will stop as soon as the autopilot works as advertised!
Respectfully, in your eyes, that time will never come. And that is because one's review of AP2 will always be opinion and not fact. And quite frankly, your opinion is so clouded by your hatred/distrust of Tesla, that you will always find (more) flaws with the system. It will never be good enough, period. As you likely recall, a couple of months ago I asked why you still own a car that causes this much aggravation and heartache. Unfortunately, months later, I still have to ask the same question.
Personally, my experience with AP2 is quite similar to the OP's. I would give TACC and AP2 (highway use only) very high marks, just as the OP did. ( "TACC: 95% parity; Highway Autosteer: 90% parity, even glimmers of superiority in certain situations") I find the system to be far better than a "sham or gimmick". I do not think that I was "ripped off" nor do I feel I am owed my money back. I ordered my car in October with AP1 and picked up the car on January 26th with AP2. I don't feel that I was a victim of the old "bait and switch". In fact, quite the opposite. If they delivered a car to me with "old tech", I would have been upset. I understand that others feel differently. While I don't agree with them, that is their opinion. I don't imagine that I would ever be able to convince them otherwise, nor will I try.
I have confidence in TACC and AP2. It is not flawless, but that is why I remain vigilant. When the system is even better in a few months, guess what? I will remain vigilant at that time as well. I usually activate AP2 as soon as I have merged onto the highway and it typically stays active my entire drive. Does it accelerate as fast as I might? No. Does it take turns exactly as I would? No. Does it change lanes exactly as I would? No. Does it brake at the exact moment that I would? No. Does it brake at the same rate that I would brake? No. Will it ever? No. It is not designed to drive exactly as I would and it never will. If that is what people expect, they are in for a very big disappointment. I would love to think that Elon Musk and his computer programmers designed my car for me and AP2 to mimic my exact driving. But they didn't. And I don't fault them for that. I suspect that they are designing the program to simulate "safe driving".
Now, AP2 on local roads? It needs a lot of work. It is nowhere near parity with AP1 and I unfortunately do not expect it to be at any point in the next several weeks and possibly not even in the next couple of months. Personally, I am okay with that. On local roads, I prefer to be "in charge" anyway. On local roads, I have the privilege of operating, in my opinion, the greatest car I have ever driven.
I am well aware that others may disagree. That is their right.
Even when AP2 is as good as it is going to get, it won't be perfect. It wont drive exactly like "you" would. Expecting that is setting yourself up for disappointment. At least in my opinion.
Be safe. Sorry for the rant.