There's going to be no political solution in the foreseeable future, just as there hasn't been one up to now: the authorities merely respond to the situation and fiddle at the edges. I've often quoted my dear old Dad saying what would happen if everybody did it? Although he was predicting the Leeds Liverpool Canal being filled with thrown stones, it applies in spades to owning motor cars. Great till everybody has one. In many places there's not enough room to make reasonable progress and, bearing in mind that even high-mileage cars tend to spend more time parked than being driven, needing parking space at both ends of every journey, it can only get worse. For many people working in city centres, especially London, the car is already an unavailable commuting option, but our infrastructure is still becoming increasingly dependent on car ownership. In short, the benefits of car ownership will eventually be killed by the popularity of car ownership, a victim of its own success.
It's wrong, of course, to say that everybody has a car or will ever do so, but increasingly, some people have more than one and so make up the numbers for those who don't.
To declare an interest I have a garage (too full of junk ever to take a car again) and three parking spaces from paving over our front garden. I am the registered keeper of two cars, (but I only ever drive one at once
) And it's almost twenty years since I gave up commuting.