I don’t think this is the fault of the actual NHS though! What they do have is extreme stress, burnout, austerity for years and years (meaning emergency planning and prep was nonexistent) , Brexit, government in shambles, lack of funding, etc, etc, etc, etc
All sympathy to the folks at the NHS for that. The NHS is better than what the UK had before - which basically was "if you're rich you get all the care you can pay for and If you're poor you just suffer and die". But the situation is that the NHS just isn't able to function as one would hope it would be doing. "Fault" is irrelevant, really, at this point. You've got a six cylinder vehicle puttering along on two working spark plugs, and those two are starting to crud up with carbon deposits. People are not getting the interventions they need, and not in a timely manner when they get any at all - broadly speaking. The end result, eventually, will be much as you had before the NHS, only diluted a bit for the poor folks. The rich will still get all the care they can pay for.
I would assume that taxes will have to go up massively to pump the necessary money into the system, or money is going to have to be re-allocated away from some other spending category to cover the needed upgrades and re-populating the ranks. Either way, you lose. (Unless they pull money out of something other than social services, which I can't see them doing - too many people making money off of those "other" endeavors.)
Blink and you'll be like the USA, only without nearly as many private GPs and Specialists.