Manifest destiny is a popular watchword introduced in the 1840s. It was used by people with a belief that USA was intended by God to spread out through North America to the Pacific Ocean. It was specifically used for the justification of California, Oregon and other parts of South America. The advocates of this notion believed that the expansion was certain and obvious. It influenced the origins of American cultural stereotypes on Native American Indians and Mexicans.
From the early 1800s to 1860s, the territorial expansion of the United States of America to the Native American Indians and Mexicans affected the linkage that existed in their cultures. The expansion into the Indian and Mexican territories was sanctified through abiding by the manifest destiny. Therefore, the native Indians and Mexicans were forced to practice and respect the morals and principles of the United States of America. The Anglo-settlers were accorded the right to devastate and remake the structures and standards of everything with respect to their unwarranted cultures. The hidden cost of the manifest destiny led to full-scale genocide and environmentalist harm (Favor 39).
Racist ideologies led most Americans to believe that Mexicans and Native Indians were cowardly and lazy. Therefore, they could easily be defeated. In addition, such ideologies brought about the stereotypical inferior races that made Mexicans and native Indians to be unable to develop their lands in a productive manner. The Protestant work ethic also contributed to these issues by emphasizing that they deserved to lose their lands to the Americans, who would make better use of it. They were also forced to abandon their culture and value systems and embrace American culture and value systems (Favor 41).
In conclusion, though controversial, manifest destiny helped the USA to expand its territory towards North America and some parts of South America. This expansion based on manifest destiny influenced the origins of American cultural stereotypes on Native American Indians and Mexicans by incorporating them to American culture through force rather than necessity.