People (I think) are missing the point. This was always going to be a political wedge issue (PP or someone else) because it's $90 Billion dollars. Obviously politicians will seize on that.
I love HSR. I think it should be built. But the overton window among transit/urbanist types has shifted so far that we've lost complete touch with regular people.
Yes that's lifetime capital costs blah blah blah but the fact remains that is an enormous, asinine and wholly unreasonable amount of money. Over 2x more expensive than remotely comparable European projects, enough money to build and fund dozens of hospitals, thousands of housing units, or a million other priorities that regular people compare things too. Hell... Spacex (idiot CEO aside) built a rocket that does backflips and lands itself for a fifth of the total funding of this project.
If we don't fix the core issue: that the way we plan, cost and build transportation projects in North America is fundamentally broken, things will never be built because they will simply be too easy of targets to kill for the next guy in charge.