All depends on what you want us to be.
PCSO to the US's world policeman?
Permanent member of the Security Council?
Maybe its about time we stopped trying to punch above our weight and do so much with so little and concentrated on playing to our core strengths and defence of the homeland.
Personally... so far as the boomers are concerned... I'd bin 'em. Even if we did get hit by either a dirty bomb, or an Iranian or North Korean or Chinese nuke, what the hell would we do about it? Do our political elite have the backbone to take the decision to respond in kind? I seriously doubt it. They dont have the cojones.
If we have to have them at all, I would suggest nuke tipped TLAM's on the Astute boats. Total cost of ownership of the strategic platform which you're never going to use is IMVHO, prohibitive.