I'm not as pessimistic as you. I put more faith in the words of the pilots who fly it than media talking heads and internet though guys. And no, nobody is going to catch up to the F-35 anytime soon, and those who will eventually catch up are all NATO countries anyway. Russia doesn't spend even one tenth of what the U.S. does on defense, and China is still trying to catch up to previous generations of aircraft, and their industrial complex is completely compromised and corrupted by their fascist political system. I'm not worried at all.