I think your views of local municipalities ability to provide transportation in california are way too optimistic. San Francisco currently operates the most expensive bus stop ever built https://en.wikipedia.org/wiki/Transbay_Transit_Center

What is parasitic about it? That they are using public roads?

They operate under illegal business models to produce impossibly low costs, driving out all legitimate competitors, including municipal infrastructure.

The Uber business plan has always been to break the law at a massive enough scale that they can buy new laws before enforcement catches up with them.

I'm just not convinced this is a thing that's happened. Which cities have avoided investing in municipal infrastructure just because Uber exists?