What has made the U. S. so attractive to people from other nations over the years?

(Short Answer)

The US is attractive because it offers job opportunities.

Explanation:

The United States is considered as a settler colonial state, because most of its population can trace their ancestry to immigrants coming from all over the world, while Native Americans comprise a small part of the population. During the XIX and XX centuries, millions of people from other nations moved to the United States, as the high industrial growth and massive economic potential of the country made America a "land of opportunity". These immigrants moved to the United States in search of job opportunities their native countries could not give them.

This trend continues to these days. According to geopolitical analyst Alfredo Jalife-Rahme, most irregular immigrants to the United States in the last 30 years have been economic refugees, mostly from Mexico and Latin America. They flee their countries escaping from rampant poverty and misery. Jobs in the United States provide them with US dollars they can send back to their home countries.

America has the court systems and freedom of religion.

Explanation:

We have a system that goes by "innocent until proven guilty". This is something many countries don't have. We also allow freedom of religion which means we can be part of any religion we believe in versus being forced into a religion by government.