The concern in some quarters that too many immigrants will change the character of the united states is

The concern in some quarters that too many immigrants will change the character of the united states is age old.  The United States for an extended period has been a nation of immigrants, and the country has a long history of successfully absorbing people from Asia, Africa, Latin America, and the Caribbean. Today, the 41 million people in the U.S. representing 13.1 percent of the U.S. population are immigrants. The successful integration of immigrants and their children had contributed to the economic vitality and towards a vibrant and ever-changing culture in the U.S.

for the 2 countries u can do china and america because america has a democratic government while china has a communist government.

a democracy is a government run by the people either by directly voting or indirectly by electing representatives. an oligarchy is a government run by a few or a small group of people. a democracy and oligarchy are similar because both in an oligarchy and an indirect democracy, a small group of induvial determine the laws for a large group of people they are different because in an oligarchy it is easier to control and they do not have to answer to a large number of people in the country, unlike a democracy where they do have to answer to a large number of people an county that is a democracy would be the united states. a country that is an oligarchy would be the china.