Obviously this desire needs to be balanced with environmental protection, practicality and accommodation of those who legitimately want to cycle or walk. There are a few technologies coming down the pipeline that should help achieve a compromise between all of these:
-mass electrification of vehicles
-pervasive small-diameter tunneling: The jury's still out on whether this can be done cheaply enough, but if this works out, it completely solves the urban scaling problem. Passenger vehicular traffic in cities can be pushed down into the ground, freeing up existing space for cyclists and pedestrians. Parallel tunnels can be trivially added when specific routes require additional capacity.
-self-driving vehicles: Self-driving taxi services would reduce the demand for personal ownership of vehicles, thereby reducing the total ecological burden.
I'm in complete agreement with you that automobile-oriented transportation, as implemented today, is completely awful. That doesn't mean we should reject the human element, and force people to do things they don't want to, when technological progress can allow us to satisfy those wants responsibly.