HSR would be fine, financially, when/if it were to become the default. Plenty of ridership, money flowing in, everyone's happy. But these early baby steps are the tough part.
I wonder if having HSR between the big cities solely, without all the alternative stops along the way, wouldn't be more prudent. Maybe combine in the price of a ticket a waymo or uber to your actual destination?
Idk, I think HSR could become a sort of long-distance default mode of travel, if it can survive the now. It feels weird to have such a successful country with the type of infrastructure we have.
Even normal rail is stupid, and it's slow AF. And expensive. To have absolutely nothing viable between a car you drive and maintain at 70 mph and a fucking airplane going 600 mph, 5 miles in the sky has always been truly bizarre to me.