You are missing my point.
Whatever the politics behind it, we are becoming poorer compared to our peer countries.
It is a fact that has to be accepted. That's very different to saying "it's fine" or thinking it's ok.
You, and many others, are missing the point type BoE is making. They are not saying it's ok. They are telling people to stop burying their heads in the sand with regard to the UK's wealth (or lack of).