I understand, but your points aren't really relevant for a number of reasons:
First, it is a dream, you have to do something to make it work. You are describing the status quo, I want us to move to something else. After decades of neoliberalism, even embraced by the centre-left party, we have eroded our actually quite decent public transport facilities. There is no reason it has to stay this way.
Second, I'm not talking about people commuting to work with public transport vs cars, even though it would be nice to get people out of the car into a much more efficient system. I'm talking about our neighbourhoods, the places where people actually live. I'm talking about going outside your house and not as a first thing having to face the noise, danger, pollution, ugliness, etc. of parked cars and cars moving on the road.
The neighbourhood could be a place where children play on the streets, where there is space to meet each other, with room for trees and other vegetation. If you just move all the tin out of the neighbourhood and to the edges on big solar covered parking lots, then it is easily done. It will create a lot of space and very little downsides. Of course we can't just rebuild all cities, but we can use this design for new ones.
I'm really not talking about parking along the edges of the city, so that you have to take a bus or bicycle in order to get to your car. I want people to park just on the edges of a block or neighbourhood (like 500 to 5000 people, depending on density). You should be able to walk to such a parking lot within 5 min. You would still be able to get to your house for things like groceries and stuff, just not park there. And disabled people would get an exception. Just this relatively simple change will reduce traffic immensely.
Third, it may feel now like you are entitled to be able to park in front of your house and drive to it by car. Everybody must naturally accommodate your wishes in this respect, because this is what the majority wants. However, if we change that and take that away from you, it will not take a lot of time before that changes. And then people will start to feel entitled to be able to have their children play on the streets again, and to enjoy such these carless spaces. In the same way, smokers used to feel entitled to be able to smoke in restaurants, in the train and even at the office. Things can and do change.
For the people who meticulously maxed out the total amount of minutes they are willing to commute, so that they really can't bear to add 2 x 5 minutes of healthy walks a day: they will eventually move jobs closer to home or vice versa, so we eventually again hit the same average of daily travel time which has been stable since medieval times. Reduced emissions is just a bonus.
Really, why are we not doing this? The Netherlands is often seen as a country which has their act together around transportation, but it could still be so much better. Cars are still way too dominant and there are way, way too many of them. We just don't have the space.