Why are there less native american tribes today?
Because the United States wiped them out. European settlers waged a 400-year war of cultural and physical genocide against Native American tribes, first as colonists and, after 1776, as citizens of the United States. The colonists and U.S. used every means at its disposal to destroy every remnant of Native American tribes, including purposely selling the tribes blankets infected with smallpox. As newspapers screamed that the only good Indian was a dead Indian, American soldiers purposely killed Native American women and children to ensure that the tribes would never recover. When the tribes were finally conquered and put on reservations, the reservations were among the worst pieces of land in the United States. And, should the government have made an error and allowed the tribes to live on land that was good farmland that was desired by white settlers or should the reservation contain precious metals such as gold or silver, the tribe was forced by the government to move. Native America
