Final answer:
Manifest Destiny was the belief in the 19th century that the U.S. was destined to expand across North America. However, a correct statement about Manifest Destiny must acknowledge its negative impacts on Native Americans and Mexicans, not just the expansionist ideology or the spread of democracy.
Step-by-step explanation:
The concept of Manifest Destiny was a widely held 19th-century belief that American settlers were destined to expand across North America. However, the statement regarding Manifest Destiny that is not true would need to be identified from a list of options not provided in your question. Generally, any statement implying that Manifest Destiny was a universally positive force without recognizing the displacement and subjugation of Native Americans and Mexicans would not be true. Manifest Destiny was associated with sentiments such as the spread of democracy, Americanization of residents in expanded areas, the economic interests of American settlers, and at times a divine mandate for expansion.
During the westward expansion movement of the 1840s, phrases such as "from sea to shining sea" and the melding of territorial growth with the spread of freedom were commonly used to justify the expansionist agenda. The movement involved complex debates about republicanism, state roles in expansion, and the implications for the nation's future. Notably, proponents like Senator Thomas Hart Benton saw Manifest Destiny as a rightful extension of American control over the Western Hemisphere, often disregarding the rights and cultures of existing inhabitants.