Impact of Manifest Destiny on Slavery Debate

In the mid-19th century, the ideology of Manifest Destiny not only fueled American expansion but also had profound implications for U.S. foreign policy and Native American relations. Prominent figures of the time advocated for territorial expansion, citing cultural and racial superiority as justification for their actions. This ideology greatly influenced the approach of the United States towards territories such as Texas, Oregon, and California. One notable event was the annexation of Texas in 1845, which sparked considerable debate regarding slavery and its implications for the Union. Which of the following statements most accurately reflects the impact of Manifest Destiny during this period?