I was in SOGAT 82 and went through the whole militant union thing, the closed shop paralysis, the creation of Wapping, it’s subsequent vicious dispute and ultimately the introduction of the much heralded/much needed (depending on your point of view) ‘flexible working’, culminating in the several decades later polar opposite with things we see today like zero hour contracts, no overtime and so on.
Impossible to directly pin the blame on the unions when any individual company goes bust but they certainly didn’t help with their inflexible attitudes with those I had any involvement with.
I’ve seen both sides have the boot on their foot and I don’t know if it’s a U.K. cultural thing, but unfortunately whoever has it doesn’t want to negotiate with the other for mutual benefit, they seem to just want to give the other side a good kicking.