The point isn't forbidding anything, it is realizing that technological change is going to cause unemployment and having a plan for it, as opposed to what normally happens where there is no preparation.
Yup. Likewise, a key variable in understanding this is .. velocity? Ie a wheel is cool and all, but what did it displace? A horse is great and all, but what did it displace? Did it displace most jobs? Of course not. So people can move from one field to another.
Even if we just figured out self-driving it would be a far greater burden than we've seen previously.. or so i suspect. Several massive industries displaced overnight.
An "AI revolution" could do a lot more than "just" self-driving.
This is all hypotheticals of course. I'm not a big believer in the short term affect, to be clear. Long term though.. well, i'm quite pessimistic.