You think that's supposed to be some kind of insult? Yawn.
You could put the system on rails and the problem would still be that the passenger capacity per vehicle is still about on par with a minivan.
That's a feature.
To move mass amounts of people, you need large passenger capacities per vehicle
Plainly and obviously false. We are already moving mass amounts of people with cars, despite all their many deficiencies.
and frequently scheduled fixed route service
Also false, although it does make planning simpler and wait times shorter so yes, you would likely run a certain percentage of empty vehicles through the system.
or a big sidewalk and get rid of the vehicles entirely
PRT can be elevated, and use basically no space on the ground, so it can coexist with all existing forms of transport.
Ever try to take a shuttle to a rental car agency at LAX?
Rental car agencies require a large footprint, so they can only be sited in areas where that is possible. That typically means in the outskirts of an airport. I haven't had LAX as a final or origin since the 1980s.
and whether it's steel wheels and rails or a rubber tire guideway system isn't relevant
It's not relevant to that, which isn't a problem anyway with an elevated PRT system, but it is relevant to efficiency. PRT solves two problems with cars, one of them being pneumatic tires, and the other being safe platooning. There is fundamentally no way for cars to ever be safe doing that at high speeds, and the tires are a huge part of that.
Even the French figured this one out, with Michelin being a huge proponent of rubber tire trackway trains
Tire company is in favor of using tires? Will you fucking listen to yourself?