The basic premises of the state we are in, in the West generally, by outsourcing jobs to countries where cheap labour was available - but UK companies would still make a profit - assuming that new sorts of jobs would come along: (but more jobs have not come along - is undeniable).
What we didnt bargain for was: that economies like India have not only taken jobs, but also our service industry (as in call centres): that economies:
especially but not only China would themselves start producing such cheap goods that our UK firms outsourcing manufacturing would also be at risk
and lastly, that the funding of many big businesses would become international, out of national control.
its hardly surprising that its left a lot of people without the kinds of both skilled and unskilled work that used to be available. they are very fed up indeed, have given up the hope that jobs will return. what do they turn to? Well, what I'd call magical thinking and those on the right delivering Blame rather than understanding to the population at large - but truth is western governments can't deliver those jobs again.
The generation growing up now expect so much more than we did, dont they? A car, holidays abroad, lots of new clothes, expensive pre-prepared food, flown in by exploiting ex colonies (think, food from Kenya and similar) or countries using immigrant labour. (the mediterranean countries)
...we were happy enough as children, most of us, with far, far, less, and I suspect we would need to be happy with a lot less again to make things work.
Trumps answer is to try and bring jobs back through tariffs, so that it becomes worthwhile to set up industries back in the USA very long term. I don't think we see many signs of this policy working. Because `I dont think the very rich or the fairly rich in the USA will be prepared to sacrifice their wealth and the US government is controlled by the very wealthy, indeed its painted as what all should aspire to.
Here's an interesting article on "populism" as in coming from the right and the left. Its from 2018, but I think very relevant today.
Like `I said, Magical Thinking