The correct answer to this open question is the following.
What caused the Five Tribes and other American Indian tribes to change course and seek statehood for the Indian Territory was the constant policy of the United States federal government of continually dividing and destroying the Native American Indian tribes. This policy was known as "Allotment."
Native American Tribes in the Oklahoma Territory started to insist on the idea of seeking statehood for its territory after the Land Run of 1889 and the Organic Act of 1890. The Native American Indian leaders worked hard and elaborated four drafts or plans to specify statehood for the Oklahoma territory.
Unfortunately for the US Congress never passed any law that would have considered this NativeAmerican Indians' idea.
Locke was a philospher who is claimed to be the most influential person of the Enlightment thinkers. He is also kbown for creating liberalism, and is recognized as the Father of Liberalism.
The main way in which John Marshall's interpretation of the constitution was different from Thomas Jefferson's is that Marshall believed that the Constitution could be interpreted fairly widely, while Jefferson was an "originalist".
The importance of spreading the faith was to save Indians from heathenism and prevent them from falling under the sway of Protestantism. Enslaving the Indians was justified as a means of liberating them from their own backwardness and savagery and enabling them to become part of christian civilization.