Why is the argument from proponents of road widening always "It will ease congestion" rather than "more people will be able to drive"?
The fuck are you going on about? You think everyone driving is ever going to be sustainable?
Out of curiosity why wouldn't it be? Technology is improving all the time. We'll solve CO2 in the atmosphere and at the point every person on earth will want a green car.
There's physically not enough room. It's not a matter of technology.