A long, long time ago in a galaxy far, far away, there was an aeroplane called the TSR2 which was utterly brilliant, too far gone to cancel, irreplaceable, and so on.
We cancelled it. Because actually it was not up to the job, inflexible, and it was too expensive. It was a disaster of unheard-of proportions, with the RAF collapsing into disarray and the British aviation industry dying on its arse. Oh hang on, the aviation industry went on to sell lots and lots of jets to rich Saudis and the RAF muddled on through with a much more varied, more affordable and more flexible front line than they could ever have dreamed of in 1960 or even 1965.
F-35 needs to be killed just as much as TSR2 needed to be killed. Because relying on F-35 will turn the UK's air arms into the irrelevancy that so many think they already are.
Nothing is too big to die.