"I now proceed to demonstrate that the Mexicans are wholly incapable of self-government, and that our liberties, our fortunes and our lives are insecure so long as we are connected with them"

This quote by William H. Wharton recommends that Mexicans are not capable of governing themselves and that the security of Americans is at threat if they are connected to them. He implies that Mexicans are not capable of making choices that would benefit their own people, which their absence of self-governance could lead to threat for Americans. He is suggesting that the two countries should not be connected, as it might result in a lack of security for Americans. This quote shows the attitudes of lots of Americans in the 19th century, who believed that Mexicans were inferior and incapable of governing themselves. It likewise shows the bigotry and xenophobia of the time, as Wharton implies that Mexicans are not efficient in making choices that would benefit their own individuals.