Airlines will focus on what sells and what enables them to turn a profit.
New York is especially bad (2.5 hours at rush hour).
Would I pay a premium for speed of flight? Yes
Do I think that there are enough people to form that use case? Yes!
Will it work? No - the benefit obtained through a fast flight is obliterated by 3rd world airport links into the major airport destinations.
Concorde had a hard beginning - the French and Brits cooperating? On research?! (It uses the French spelling...)
But when you couldn't fly a helicopter to Midtown anymore, or into the City... The clock started ticking. (This last I have from dear old Dad who was in Finance in the Concorde era and through its end)
https://blade.flyblade.com/p/bounce
It's about $200, but if your time is worth a lot to you, it might be worth it, especially since a regular taxi is $60 anyway.