Earlier quoted context omitted.
Maybe market share, but I can't see how the argument goes for technology or infrastructure. As of now, none of the auto-driving tech is acceptable to go hands free, people have tried it and paid with their lives. The only difference between Tesla and traditional companies is that Tesla didn't seem to mind people testing unproven techs with their lives while the other manufacturers are more restrictive.
Take a long distance road trip with an EV without Supercharger access. Report back.
I mean, just 3-4 years back I'd agree with you. Nowadays at least here in UK you're getting 100-150kW chargers being built literally everywhere. I'd have no problem owning and driving cross-country in a non-Tesla EV nowadays. That equation will only be getting worse and worse for Tesla - they are adding more Superchargers but nowhere near the rate of non-Superchargers. Yes, Superchargers are better technically(especially if you have the latest Model 3 and can tap into the 250kW charge), but it's no longer the argument to buy a Tesla - charging a normal EV is less and less of a problem, even on long journeys, even without having access to the Supercharger network.