The primary issue with a one party system is the suppression of individual rights and no democratic rights.
In a one-party system, like the one in Communist China, the people have no voice in how the country is run. One political party makes all the decision without any opposition in the parliament.
From the perspective of human rights, this will lead to dictatorship and a curb on freedom of speech.
Lucrative trading between the two such as cotton and other goods which then also used alcohol in negotiations which at the time was a powerful tool to negotiate.
The amount of people that died in the boston massacre was 5
It allowed them to tax the states. the articles of confederation did not do that.
The Soviet Union’s goal was to have worldwide communism , so the U.S didn’t trust them from the start .