I think the arguement is coming round, again, to the impossibility of having single-role, niche, systems in the modern fiscal climate. Just imagine how useful an RAF detachment of B1s from our base at Diego Garcia would be right now?
The irony is, this "one platform, many roles" mantra actually plays strongly in the arguement for CVF. There are the obvious roles of CAS, OCA, DCA and SEAD, but also, with some imagination, Strike (nuclear armed S-S / Free Fall), LitM, SF Support, NEO, disaster relief etc etc.
So, sorted! Bin the T boats (or do as the USN has done and convert them to SSGN/SF roles), buy the carriers (and a flexible airgroup - not just F35) and ask the US if we can buy some s/h Bones, or get involved now in the future bomber programme. If that cost us some Typhoons, so be it, but an air platform with stategic reach (and nuke-capable in extremis) would give the RAF a proper strategic role again.