the undoing of the unions was something mostly accepted in the UK (as it was in Grumpenland). What we are seeing here is in my opinion _exactly_ why that was a bad idea.
The undoing of the unions *** at that time *** was essential; we were in hock to them, and they were effectively unelected barons. The '70s was a bad time to try to get stuff done.
That said, the removal of the union system was bad for employees; unions tend to serve a good purpose and should be encouraged.
The tricky bit is this: these needs to be a balance between union power and management power; too much union power, and you have anarchy. Too much management power, and you have dictatorship. Balance the two, and you have a mutually-beneficial arrangement.