Biking could help with this, but there's so much cultural momentum against treating bike infrastructure as a first-class citizen, or heck, even a second-class citizen like walking. And without safe bike lanes, very few people will bike.

The amount of subsidies and preferential treatment we give to cars is really astounding, but at this point most people in the US can hardly think of it being any other way.

I tried that, and even if I was in the Netherlands I don't think it would apply. Biking has its constraints, you can't go at your own pace even in dedicated lanes, you have to be very actively focused on others, and you need secure parking lots if you plan to do something else otherwise 50% chances it will get stolen.