None of the following is critical of City Beautiful: he is a great guy and his video is completely accurate, as usual.
In fact, there are several things in his video that are just *too* accurate.
When redesigning a stroad, you can't take space from cars (except in rare situations), you can't change intersections, and you can't move any utilities.
You need to plan around the scraps left over on a stroad designed for drivers.
So the ultimately, the solution will be a big compromise.