Question

What was one reason for anti-immigrant sentiment in the early 1900s? tolerance for other cultures a decline in patriotism competition for jobs an increase in war protests

Answer 1

One reason for anti-immigrant sentiment in the early 1900s was "competition for jobs," since people felt that immigrants from other nations were "stealing" domestic jobs. 

Answer 2

Option: competition for jobs. In context, during the second half of 1800's many Asian immigrants came and settle in the U.S. More than 25,000 Chinese had migrated by the 1850's lured by the gold rush.  

This massive immigration of newcomers resulted in an anti-migrant sentiment especially among the Anglo-Saxon Protestant population. The newcomers were seen as competion for jobs.  Also the arrival of many Catholics, especially the Irish created the anti-immigrant and anti-Catholic American sentiment.

The massive migration of Chinese made the goverment restrict them from coming to America. The Chinese Exclusion Act banned these workers to come to California since they were blamed for the decline in wages since they were willing to work for less.