I love Bullet trains and road them in Germany and Italy. My Garmin GPS shows 243 mph when we took it on the Italian Bullet Train. But Europe's culture is to take the train. 'Merica's is to hop a flight.
90 mins is still twice as long as a SWA flight.
These guys will need a lot of Fed money, and all that Trump Infrastructure spending is more likely going to rebuild outdated stuff, not new stuff.
More power to them, but ask Kalifornia how their HS rail project is coming.
SWA will put up a small fight, but in the big picture, they could prolly care less.