The fundamental issue here is that the UK 'Government' has apparently abandoned any further attempt to produce its own military aircraft at sensible cost. European collaboration (Tornado, Eurofighter) has been proven to be inflexible and no less costly than going it alone, surprise, surprise. American collaboration ditto, perhaps even moreso, given the phenominal cost (albeit providing phenominal capabilities) of current USA design philosophies.
Yet another UK manufacturing industry heading for oblivion, in the same sad fashion as home-produced motor cars, motorcycles, commercial aircraft, trains, ships, etc etc etc. Yet another nail in the coffin encasing the corpse of the UK economy. Its all downhill from here.