Unfortunately, Trump is as stupid as the rest of them, or rather more so. All he thinks about is jabbing liberals in the eye with the transgender ban, the Wall and denying medical care to the poor. He never thinks about China eyeing Hawaii, Guam and Alaska as future Provinces. The inhabitants there would serve as slaves until the land is repopulated with Chinese...or North Koreans.
Rebuilding America is the last thing Trump cares about. Trump just cares about being the center of attention with his loud, nasty, ugly hyena-face with somebody else's hair pinned on top. Trump is a petulant child, not a man. If leaders like that waste of space would do something other than brood over real and imagined slights, things might move forward. More likely, the U.S. is destined for long-term decline. The people, unaware of history, bored with science, and only semi-literate with their gadgets and toys, plastic Jesuses and opiates, seem incapable of looking after their own interests and electing any kind of leader worth his salt.