To what extent was the chinese exclusion act a turning point in american foreign policy

The Chinese Exclusion Act was a turning point in American foreign policy because it specifically restricted people from a certain geographic region. Before the Chinese Exclusion Act (which was in 1882), immigrants faced discrimination from nativists within the US. However, there was never a specific law targeting Irish, German, or Italian immigrants up until this point.

This is law is going to result in the steady decrease of the Chinese American population as well as tensions between the two nations.

from the word list given, the most suitable words that relate to the reason information were written would be:  

objectivity: lack of bias, judgment, or prejudice

accuracy: free of mistakes, to be correct

authority: the ability to tell people what to do or believe in

content: to be satisfied  

it can be said that the author made the article to present objectivity, to provide accurate information, to be the authority in the subject that he or she writes, and to be satisfied of the information quality given out.