But you can't ignore the financials. SF Muni's $3.62 cost per passenger mile is atrocious. At that price point, it's cheaper to charter a helicopter. I'm not kidding. You could literally charter a 20-seat Airbus H175 helicopter to fly people around for $2.50 per passenger mile. And you'd get there faster.
If public transit is less cost-effective than taking a helicopter, then something is clearly broken.
Good luck scaling that “solution!”
Of course, this is what happens when there's no profit motive. If we weren't making the marginal cost of using a road zero, and they had to compete with each other, and the people running transit wanted to make money rather than satisfy the requirements of a law, transit would be cheaper. That's how it is in all the places in the world where transit is really good.