Thought provoking and, yes, those karmic ghosts continue to haunt me - I haven't bought 'American' in nearly 30 years and may never again.
I'm not so sure that the US car makers are evil or complacent, rather they were caught up in what amounts to a tragedy in the literary sense: doomed to some fate they could only play out and not change. In the 50s US cars were the best in the world (and more or less of equally good or bad quality intersese), at least for North American use; Brit cars fell apart faster than you basic Harley, and the Japanese were still building plants in the rubble from WWII and had no car building tradition to begin with. Europe had to build plants but being Europeans, they more or less stuck with past design and tradition.
The grief began in the late 60s when emissions controls were slowly implemented, the US with its huge base could do no more than adapt while the Japanese were in a position to develop from scratch. That is, they could begin with a clean sheet of paper while the US makers were reduced to editing a script partly set in stone (or cast iron). The European car makers probably had to stick to tradition.
In any case, it's all history, the only thing which never changes is lousy dealer service.