This comment from Gail Combs on another blog suggests that Trump is the only candidate who is in the race for personal reasons that involve the continued greatness of the US. She begins with a quote from 40 years ago that covers the how and why the US is being taken apart.

(quoted from a source that Gail found): "... use American money and know-how to build up your competitors, while at the same time use every devious strategy you can devise to weaken and impoverish this country. ..."