Are an illusion. Why? Quite simple they depend on multiple sensors which in turn depend on clear clean road conditions and the willingness to cleans all sensors arduously over their lifetime.
Snow, Rain, Dust, highly reflective surfaces are the least of your worries. The point is unfortunately 99.99% of the worlds infrastructure doesn’t resemble California highways at all.
Even in France or Germany with their very high standard highways the infrastructure mostly consists of badly maintained single lane roads often following the terrain resulting in very low grade daily commute connections.
The state of road infrastructure in 3 world countries is evidently even worse.
Please explain how an autonomous car is going not kill you on this extremely popular route
A twisting single lane road through multiple congested villages mostly along cliffs without a protective barrier at all. Still a a very busy commute road. So there you sit in your futuristic autonomous car, sun high & reflections all over the place, obstacles like fallen rocks a plenty, a road which is only recognizable as such because there is tarmac somewhere, passing motor-scooters at breakneck speed right and left, cars coming up on the other lane towards you.
And thats actually a reasonable road compared to for example India.
Self driving cars? Sure in the tiniest part of the world where well indicated multiple highway lanes exist.
I invite you to come over here with your Tesla during winter, the trip only takes about 40 miles. You’ll hardly reach your destination even when driving yourself due to severe drain caused by height differences, gale-force winds but for sure not with even the most advanced software someone can come up with if you go autonomous.