Another way of looking at the failure of US companies and the failed resurrection attempts of them might be this:
In the 1970's Japanese automobiles were biting a chunk out of clunky US made vehicles sales. To protect the US auto industry and other threatened industries, congress began instituting tariffs which, of course, affected such other imports as Japanese made drums and guitars.
Up to this point, Japanese made instruments were inferior (sorry MIJ fans). Wisely, with tariffs adding cost to their products, Japanese companies decided to compete head to head by increasing quality and by utilizing predatory pricing. Over time, imports received more acceptance. By the, most US companies were no longer family owned. Plus, boot, vision and quality suffered under corporate ownership.
Enthusiasts within companies such as Hoshino and Yamaha hoping to revive and market the reputation of defunct American brands just failed to pull it off.