Around 60% of Pepsi's snack sales come from outside the U.S. with their best markets being Australia, Britain, Canada, China, India, Mexico, Netherlands, Russia, and Spain. This is a company (including their beverage division), where trade relations can make or break their organization. Quite frankly, visits to other countries by U.S. Presidents and other government officials are mostly ceremonial; the people who are truly behind the success of our relations with other countries are the men and women who work for U.S. companies but conduct business around the globe.
Many people from other countries don't see President Trump as representing us because they don't know him. It's the employees of American companies and the people who work in our embassies who set the tone as to how we're perceived in the world and they’re doing an awesome job.
I hope you've noticed that when you pull back all the layers to any issue of importance, such as foreign relations, that the answer at the core is always capitalism. Even countries that look at themselves as Communists or Socialists can only stay afloat with good trade relations (a.k.a. capitalism). The citizens of North Korea are hanging on by a thread not unlike the Cold War days in Russia because their leadership is losing trade relationships with countries like China.
If we could just get liberal college professors and their students to acknowledge the truth that capitalism (although not perfect), is the best system in the world for taking care of the needs of everyone including those with social needs.