At least you offer up the hope that you will still be around to enjoy the fruits of HS2, unlike some of us who will have been laid to rest or fast approaching the expected message from the reigning monarch congratulating us on reaching the 100 years mark on the planet..
This debate is one that will run on and on
ad nauseum for years to come....
Well said Paul. On the subject of cities 'off the HS2 Route' we did have a discussion here on whether there could /should /would be through services from (say) Cardiff to Leeds using HS2. I disputed with an OP as to whether trains could access HS2 from New Street and it seemed perfectly possible to me looking at the maps.
In other words, lots of journeys could benefit from CC services, perhaps not at the moment fully envisaged or realised.
The 'wider economic benefits' issue was just as much debated, regarding road building, back in the 90s. Only then, there was no background data to support the slanging match that went on.
As an illustration, if you build a new road to a location that is suffering unemployment, it was argued that this would bring more business to that area. The anti-road building side argued that the increased ease of accessing the location would mean the reverse, namely that the location could more easily be served from afar, resulting in the removal of local factories and distribution centres to more central locations.
Judging by what actually has happened since the late 80s, I think it can be confidently argued that both results occurred, but it is difficult to disentangle the evidence as we have of course had substantial economic growth generally, anyway.
If I was an anti HS2 campaigner (e.g. Chilterns, Camden) I would stick to environmental and social impact and leave economics out of it.