What is the most difficult country to immigrate to the United States?

Why does El Salvador, the most densely populated country in Central America, get the "cold shoulder" from the United States? There are many reasons for this, mostly because of American selfishness. Here are some specific explanations for your reference:

1. Illegal immigration has always been the biggest problem in the United States and El Salvador;

The United States is a country dominated by immigrants, and they have always maintained a relatively open attitude towards the outside world. But in recent decades, the United States began to oppose immigration for its own interests, and now it is getting worse. For example, building a fence in Mexico is Trump's masterpiece, which is actually the request of the United States itself. It can be seen that the United States has many different views on immigration. In recent years, illegal immigrants from El Salvador, Mexico and other countries have flooded into the United States. The U.S. government thinks this is irresponsible behavior of the governments of El Salvador and Mexico, so it has a great opinion about El Salvador. After all, El Salvador is a populous country in Central America, so the United States has been putting pressure on the Salvadoran government on the issue of illegal immigration. In fact, El Salvador has made a lot of efforts, but the United States has been dissatisfied and has produced many contradictions.

Second, El Salvador has many different opinions from the United States politically and economically:

El Salvador's economy has been unable to develop, which is actually directly related to the suppression of the United States. In recent years, the government of El Salvador has its own political inclination, which makes the United States even more dissatisfied. They hope that El Salvador will listen to the United States and follow its direction. However, the Salvadoran government understands that if it continues to follow the United States, it will probably lead to national economic and political chaos, so the two countries have great opinions.

Third, the establishment of diplomatic relations between El Salvador and China is also something that the United States is very dissatisfied with:

It is normal for El Salvador to establish diplomatic relations with China, but the United States thinks South America is its back garden, so it is very dissatisfied with El Salvador, so El Salvador is not liked by the United States.