How do you make trading partners of formerly "Third World Nations"?

I want to act like a historian for this blog item.  To President Trump, the presidents since WWII were dumb, treating the backward nations as legitimate trading and business-astute partners, offering them "most favored nation" status that virtually eliminated tariffs in selling their goods abroad that were once made in the US.   All they needed was to join a trade organization, such as the WTO.

But there are rules and regulations imposed by a trade organization upon its members.  For one thing, the accounting method known as GAAP must be deployed in the financial books of its corporations and business enterprises.  And so on.  Now if China wants to maintain the status of a trading partner, one whose businesses are governed by GAAP rules, then it will benefit by the most favorite nation, paying minimum import tax among all businesses in member states.

While trade organizations were promulgated by the Advanced Nations, e.g., the United States, the idea was to sell their financial procedures and concepts to all those nations seeking to become world class trading partners, i.e., its companies participating in trading deals with others around the globe.
The carrot to backward nations was low tariffs.  Moreover, to assure compliance with the trade organization's rules, third world nations would include companies of the Advanced Nations, which established regional corporate centers in these backward countries.

That is, a certain number of  companies that moved some of their operations abroad would lose their employees at home--say, in the US.

But thank God for President Trump who can up the tariff upon the company divisions that produce goods abroad and would sell  them in the US at cheaper cost than had their production occurred on US soil.  GIVE ME A BREAK!