Honestly, the sort of future wouldn’t bother me where the unsustainable mode (cars) would have to use ads to help cover what are now negative externalities, and

Honestly, the sort of future wouldn’t bother me where the unsustainable mode (cars) would have to use ads to help cover what are now negative externalities, and walking, biking, and transit would be the ad-free options. But of course it won’t be like that.