Ikea's existence didn't wipe out woodworking.
I bet you'll be able to go to a closed course and drive there though, for a cost. :)
So by the time a law passes that forbids non-autonomous driving, it won't be a "fascist government" but your own countrymen who will take your "basic freedom" away.
But don't worry, I was using the "you" figuratively, by the time this happens, I don't think any of us will be alive. And, of course, there is always the off-chance that someone codifies in the constitution the right to drive a car, assuring that future generations have the freedom to kill themselves in the roads as we proudly do today.
The roads will just be for hobbyists who like to drive their own cars (and write their own code,) and probably transportation of heavy materials.
In a short phrase, someone has to go to jail / get in to trouble.