The F-35 is going to be a dog in the next war, and will probably alone be responsible for us losing it.
we can't afford very many of them at $200 million a jet.
and each time one crashes or gets shot down (no matter how rarely) that's one irreplaceable jet we have running.
it's great at stealth,
horrible at dog fighting,
horrible at capacity,
up and running only occasionally,
not combat tested because they keep them out of all combat, as they are too expensive to fight with, if they are running that day.
the bugs are expected to be worked out 10 years after promised,
and by then the jet will be obsolete.