It was sold on an impossible premise; - Minimum 200 miles per hour (320 km/h) where conditions permit - Maximum travel time between SF and LA not to exceed 2 hr 40 min - Financially self-sustaining (operation and maintenance costs fully covered by revenue)
A flight to SF is 1.5hrs from LA (take off and landing). And only costs $150 round trip. If you could reduce the hassle of “security” you have a better, faster, cheaper high speed transit system.
It was supposed to cost $30b. It will cost north of $90b. And it will still need to be subsidized. And it will be slower than 2hr 40min.
If you could possibly deliver what was sold - I’m sure the polling would reflect that. But what the people are getting is a shadow of what they approved.