Have you been to Taiwan? All the problems you just listed exist but even worse. You think Taichung has better public transportation than San Jose?
> Taiwan’s high-speed rail system proved reliably profitable — and popular, with 64 million riders last year.
Aside from talking about the (potential) cost, you didn't make any other point for why there shouldn't be a HSR. It's fine if you don't think we should have one because it's becoming too expensive, but I don't see any argument for why it wouldn't be useful.
Plus, Taichung is building a metro which will open mid-next year...