What if Trump's plan is actually smart?
Let's just be hypothetical. Making an inference based on possible outcomes. The main changes will follow.
By never confirming how he feels about discrimination he lets bad actors in all areas reveal themselves. They end up destroying their businesses, lives, etc by being revealed. Businesses get sued into oblivion due to easily proven discriminatory practices violating the Anti Discrimination Act
The annexation of Canada, Greenland and Mexico goes through making a unified North America. Let's just go with Canada agrees after their economy tanks, Greenland just tells Denmark to fuck off so no military action, and Mexico does after an agreement that the US military will take out the cartels.
Manufacturing has a massive explosion due to the new labor force that won't bitch about factory work in Mexico(now 6 new states).
Trade lessens heavily with the rest of the world due to more workers willing to work in factories and the new America having plenty of natural resources
Major corporations fail left and right due to partisan politics ruining their market cap and shipping fees massively increasing as less trade is happening so companies focused on overseas shipping have to make up their profit elsewhere
Small and medium sized businesses fill the gap from corporations failing
This isn't a point just the end of this. This is solely going to focus on America. Obviously the rest of the world would take a massive change if America(now incorporating Canada, Mexico, Greenland and we'll just say for fun that he also brings in Cuba, and the rest of central America down to Panama for shits and giggles.
So what if this was true and this all happened? Does life improve in America? Does it end up a civil war? Does this actually help people?