This is not Trump. It is American cultural insensitivity and paranoia. It is this pervasive American attitude that inspires terrorists and has done for decades - long before Trump. Border agents are given more power than their intelligence and training justifies and incidents like this are the result. 

The solution however is as you suggest - leave them alone. 

When I retired I planned to head south every winter. I did this for one year and decided 6 months of America just to escape Canadian winter weather was just not worth it. When you have a nation that thinks Chop Suey is a Chinese meal and French toast is French then all hope is lost.  America has no culture and can't understand countries that do.