Question

this excerpt is from an analysis of u.s. policy.
federal, state, and local governments worked together to involuntarily remove many u.s. citizens of mexican ancestry, many of whom were born in the united states. . . .
approximately 60 percent of the persons of mexican ancestry removed to mexico in the 1930s were u.s. citizens, many of them children who were effectively deported to mexico when their immigrant parents were sent there.
—kevin r. johnson, \the forgotten repatriation of persons of mexican ancestry and lessons for the war on terror,\ pace law review, fall 2005
why did the u.s government take this action during the great depression?
some thought people of mexican ancestry were buying too much property.
some thought people of mexican ancestry were taking jobs from u.s workers.
some feared that people of mexican ancestry would force their religious beliefs to become the law of the land
some feared that people of mexican ancestry would force u.s schools to teach foreign languages.

Explanation:

During the Great Depression, there was high unemployment. People often look for scapegoats during economic hardships. Immigrants (and in this case, those of Mexican ancestry) were wrongly blamed for taking jobs that native - born U.S. workers could have. This led to policies like the involuntary removal described. There is no historical evidence to support the claims about property buying (there was no such widespread perception of property - buying by Mexican - ancestry people as a major issue during the Depression), religious law - forcing (religion was not a central issue in this context), or language - teaching in schools (language was not a key factor in this repatriation policy).

Answer:

Some thought people of Mexican ancestry were taking jobs from U.S Workers.