Final answer:
Manifest Destiny was not about helping Native Americans reclaim lands but was actually a belief that justified the American expansion and acquisition of land, often at the expense of Native Americans. The claim that Christian advocacy groups used it to help Native Americans is false.
Step-by-step explanation:
The idea of Manifest Destiny was in fact the polar opposite of an ethos that sought to help Native Americans reclaim lands taken by the US government. The statement is false. Manifest Destiny was a widely held cultural belief in the 19th century that American settlers were destined to expand across North America. It justified, in the minds of advocates, their right and duty to govern over other groups they encountered, which included the displacement of Native American tribes and appropriating their lands.
Acquisition of land was indeed the primary motivating factor behind the formulation of early U.S. Indian policy, and this goal often resulted in the forced removal and suffering of many Native American peoples.
Therefore, when it comes to Manifest Destiny and its relation to Christian advocacy groups aiding Native Americans, the true aim of Manifest Destiny was American expansion and dominance, often at a severe cost to the indigenous populations.