Industries that rely heavily on business travel are basically fucked. Airlines (first and business class), hotels, ridesharings, car rentals and etc.
I don't see how business travel goes away. You just can't effectively build relationships over zoom, phone calls, and email. It's just not possible. Ask anyone who's been in a long distance relationship.
Hardly a fair comparison. You don't have to love, or even have any real feelings towards business colleagues, customers etc.
The opposite to a long distance relationship.