MasterCard can and does decide who can or cannot take payments and nobody gives a damn either

True, but the self-driving cars argument has always been that if all cars on the road are replaced by self-driving cars, you will have no road deaths.

Which pretty much means that in this future, you will have no choice but to use a self-driving car. Which gives disproportionate power to automobile/SDC companies.

If the only motorized way to move from point A to B was Amtrak, I would be worried about the power Amtrak has over my physical movement too.