Much of your post is "whataboutery" so what if PFI cost X amount, why drag up events 20 or 30 years ago, as PFI started under Major & i wonder how the NHS would operate today if those hospitals hadn't been built?
HS2 is now... its money we have lost today.
No the UK hasn't seen yields rise as you suggest, the 3.8% figure was a low point, the average over the last 2 years has been around 4.3%.
German and USA bond yields have both gone up by approx 21% in the last year, UK is 27%, yes higher but not by some huge amount & France a very similar economy to ours, has seen yields increase by almost 30% over the last year.
On housing, discouraging BTL with NO alternative, just leads to increased rents and more evictions.
You cannot put the cart before the horse, which is why i do not support Labours housing policy, its all pretty much what we've seen before "Targets with no account of affordability"
They also build estates where there are no jobs, adding to traffic congestion.
Without huge amounts of money, dev's wont build social housing and HA's don't have any funds to buy those that are built, so near me, are 30 properties, been empty for a year, no HA will them and councils haven't the money, we have a huge housing issue in Cornwall.
Anyway, this thread isn't really for these arguments, so i'll shut up now.