A couple of points to address here. First, somewhere in the prior 96 pages this has probably been addressed, but I'll post it again as a reminder:
Level 0 _ No Automation
Level 1 _ Driver Assistance: Under certain conditions, the car controls either the steering or the vehicle speed, but not both simultaneously
Level 2 _ Partial Automation: The car can steer, accelerate, and brake in certain circumstances.
Level 3 _ Conditional Automation: In the right conditions, the car can manage most aspects of driving, including monitoring the environment. The system prompts the driver to intervene when it encounters a scenario it can’t navigate.
Level 4 _ High Automation: The car can operate without human input or oversight but only under select conditions defined by factors such as road type or geographic area.
Level 5 _ Full Automation: The driverless car can operate on any road and in any conditions a human driver could negotiate.
I have to vehicles which have Level 2 functionality, a 2017 Acura MDX, and a 2019 Tesla Model 3. On paper, these vehicles do the same thing. They can break and accelerate, they can steer the car around corners on the highway. On paper, they have the same functionality. In the real world, they are light years apart. It's like comparing an iPhone Xs to a prepaid Android phone from Walmart.
I just completed a 2,000 mile road trip in the Model 3. The car drove 90% with supervision. "In the right conditions, the car can manage most aspects of driving, including monitoring the environment. The system prompts the driver to intervene when it encounters a scenario it can’t navigate." WIth Navigate on Autopilot, the Model 3 is Level ~2.9 autonomous on the highway. Add in city driving, and we are a firm 3. By comparison, the Acura is a mediocre Level 1.5 (and all it will ever be).
Elon wants to get to Level 5, and yes, he has said that by inferring robo taxis, as that would be required to operate without human oversight.
The debate is about the definition of FSD. Is it level 3, 4, or 5? What were we sold? Well, that answer is "Well, it depends"... Are you driving a couple year old Model S or a 2019 Model 3? 8 cameras or 1? 2.5 HW or 3.0 HW? Because right now, here today, there is a world of difference between the sold features with the same name... EAP on a couple year old Model S is nowhere the reliability of a new Model 3...
On my recent trip, it was very predictable what the car could handle and what it couldn't. Dedicated turn lane on the right? Yep, that will trip it up everytime. Slight wag of a semi trailer in the adjacent lane? Yep, it'll pump the breaks like a beaten dog... That's it... Literally 2,000 and that is it... Navigating interchanges in the central California- check, passing cars automatically- check, stop and go traffic- check, mountain driving up and over Donner Summit- check, curvy sections of highway 95 in Oregon- perfectly. Highway EAP on this car is efing amazing. If Elon gets the level of city FSD to the present highway EAP, I'll be perfectly happy with my extra cash outlay. And if he reaches his goal of Level 5, even more so...