Answer:
The Americans supported the Indian removal act because the colonies wanted their lands. they were tired of constantly crossing boundaries with the Indians' hunting grounds and such. Americans also considered Indians to be savages. they constantly fought with each other. So, the Indian removal act forced Indians to move west, this being known as the trail of tears. thousands of Indians died on this journey.
or
Some Americans supported the Indian Removal Act, saying that somehow the act would not only benefit America, but also the Natives themselves. By pushing the Natives outside the country's boundaries, Natives would be able to return to the culture they once knew and would be able to throw away the white culture they were forced to absorb