The unions did exactly the right thing:
So the right thing is to run the companies into the ground. Again your understanding of business is mind blowing.They got what they could for their members.
They strong armed the companies into giving up much more then what the workers were worth with threats of total shut down. Its called extortion.
The companies evaded the anti-trust laws and refused to invest enough to be competitive.
Thats not true.
So what you have said is that the people who are responsible are not to be held responsible because you can shift the blame to someone else.