ORIGINAL: awsure
I think it has more to do with globalization than union wages, management errors, or otherwise. When you start off with a couple providers of a product & you introduce more competitors the originals can only lose share. I think at this point the big three simply need to recognize the market will be fractured amongst many players and they each need to develop their respective niche.
Actually, it has to do with union wages, globalization and many other factors such as poor marketing and poor quality.
Other countries do not have unions like we do and the cost of labor is lower and can compete better because of it. That is a doubly whamy agains the U.S. automakers
and other industries in general.