Re: A wreck without leaving the ground
Arguably not completing it now would be seen as a serious strategic weakness, a dangerous impression to give!
Why? The US has almost as big a defence budget as the rest of the world combined, and whilst it will need a replacement for the various operational fast jets, it doesn't need the F35, and it face no imminent threat of technical superiority by any other country. In this discussion, it is worth recalling that trying to keep up with Star Wars was what bankrupted the Soviet Union. In this case the US is trying to bankrupt itself. Cancelling the F35 programme sadly isn't going to happen, but if it did, what would the Chinese or Russian's say? :
a) Good lord, they've scrapped a non-operational money sink! They've only about 3,000 fast jets in service, they must be defenceless - lets invade!
b) Holy sh**! They've woken up and smelt the coffee. We're in trouble now, because they might actually spend their money on stuff that works.