That’s ignoring a lot of other losses. Like in air travel you’re instantly losing 10-15% of your fuel generating lift, then you have to add in the fuel used for carrying the other fuel required throughout the flight. Whereas with high speed rail, rolling resistance (which we could say is the equivalent of lift in aircraft) is less than 1% from a quick search, and for a lot of passenger rail and almost all high speed rail you don’t need to carry fuel which is supplied as electricity from an overhead line.

Hyperloop of course was always a non-starter because the kind of energy that would be required to pump down such a huge volume would be ludicrous, maintaining the low pressure extremely difficult, and the amount of materials needed for the tube would be ridiculously large.