Why don't Americans translate "Amei country" into the United States according to the pronunciation of China and "America"?

It was named in memory of the Italian explorer Amerigo Weiss Pucci who discovered America. The full name of the United States is the United States of America, which is located in the south of North America. Why is it called "America"? Tracing back to the source, America, like the whole America, was originally the hometown of Indians. After Columbus "discovered" America, western countries in Europe, Portugal, Britain, France and other countries came here to seize territory, establish their own colonies and immigrate in large numbers. Most of the immigrants are laborers who want to get rid of feudal tyranny and find a way out. Spain and Portugal occupied most of Central and South America, while Britain established 13 colonies in North America, which is called "a joint colony with 13 continents in North America". In these colonial areas, especially in the northeast, the capitalist economy developed rapidly, but it was restricted and oppressed by the suzerain in all aspects, so the contradiction between the British government and the colonies became increasingly fierce. From 1775, under the leadership of George Washington, the colonial people in 13 launched an independent war to overthrow colonial rule. After a long and arduous struggle, 1776 adopted the declaration of independence at the "continental conference" held in the British colonies in North America, and used the name "United States of America" for the first time. Since then, the United States was born as a country. In the arduous struggle, the American people launched guerrilla warfare in various places, which dealt a fatal blow to the colonists and finally forced Britain to surrender. 1783, Britain and the United States signed a peace treaty and the United States gained independence. 1787 The American Constitution officially affirmed the name of "United States of America".