What would you have the AF/Navy/Marines fly instead? The Harrier is so far gone we've had to buy the entire remaining fleet from the Brits. The original Hornet

What would you have the AF/Navy/Marines fly instead? The Harrier is so far gone we've had to buy the entire remaining fleet from the Brits. The original Hornet the Marines use is on its last legs, and the Super Hornet is nowhere near good enough for near peer competitors. F15/F16 can soldier on for a decade or more as long as they're out of range of S-300 and above SAMs. There aren't enough F-22s in our inventory, and no prospects of re-opening that production line. The AF and USN are investigating a 6th-gen fighter, but that will be a long ways off since money is being spent like crazy on the B-21. And back to the development process; modern aircraft are more complex, and do take longer. You can't just go back to a design/devel project from the '60s anymore than game developers can crank out a AAA game like Dave Theurer Atari did with Tempest. And if you look at aircraft projects around the world, they all take forever. Look at Rafale, or Eurofighter, or Su-57. Developing aircraft has to include political considerations, (look at the TFX proj) as much as technical.