The west/ developed world is in a terminal relative decline.
The GDP per capita still isn't back at 2006 levels in the UK, not even taking into account inflation!
When they say the economy is growing it's only because the population is growing. Of course more people = more money but it's not more per person. We are all getting poorer, that's why we feel poorer.
This was all the case even before Brexit COVID Ukraine.
Brexit and the decade of austerity were Tory policies, which have damaged the economy. They are responsible for these and the UK has performed worse than it should have because of these.
But there are global issues too. (Global birth rates rapidly declining being the biggest long term issue)
If you look at the top countries by population and total GDP in 2100 it's very different g7/ G20 from today.
The new power will be in Asia/ Africa not Europe/ USA.
G7 2100: India, China, Nigeria, Pakistan, USA, Indonesia, Ethiopia.