Addressing your last paragraph, people get nervous about that because eugenics, my dude. But really what would actually help with this would be comprehensive sexual education and affordable, easy access to birth control methods. That's an easy fix but the religious groups are holding us all back on that one.

As for your other points, you're right. Cities should be more walkable and public transit should be more reliable. But that will never happen if people don't try to fight for it (if Musk would just drop dead/shut the fuck up anytime something is being proposed). But in all the different cities I've lived in, there are little pockets of places that could feasibly walk/bike/scooter to places, but they don't. Because they don't want to. A friend of mine and her family went camping and invited us once. At the campsite, the showers were maybe a 7 minute walk away amd guess what they did? They drove. The store was 15 minutes away and they drove. They do this for the 7/11 that's a block away from their apartment. We live in SoCal which means the weather is almost always perfect. They are not the only people who do this. One of my friends drives and SUV. They're single with no children. My mom drives an SUV. Her children are grown and out of the house, what the fuck do they need those cars for?

You make very very good points, and cities and public transit are places that should be improved to lead to more walking and better, safer public transit. But there is room for personal improvement despite the shit conditions we are currently working with.