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The F-35 is the most expensive weapons buy in the history of the Pentagon. It's already estimated to cost over $1 trillion over the entire lifecycle cost of the buy. DoD wants to buy 2,443 by late 2030s while the cost to build each F-35 has risen to an average of $137 million from $69 million in 2001. While the F-35 is touted to be the greatest thing since sliced bread, it has been ridden by setbacks and cost inflation.
So for you non trade folks, that means industry can't produce the technology (yet) that DoD wants. Yet they continue to get paid. Boeing has a cheaper, and arguably just as capable, option in the F/A-18 Super Hornet available at $66.9 million.
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So should the U.S. shitcan the F-35? I say YES. They can't produce the technology for the vertical take off and landing, and it might not be another 10 years, I guess, until they do. Just buy a shitload of F/A-18s, already bought and proven with predictable cost schedules, and go from there.
Simply, spending has to be railed in somewhere and the F-35 is the best place to start.