Because the Native Americans were not introduced to European diseases on their own homeland.
Their immune systems were exposed to European Diseases that they never were in contact with before, which caused sickness. Without today's medicine, they were basically helpless and left to die from the exposed diseases.
America was founded by immigrants, I believe immigrants have a right to be here and have the freedoms we do as long as they do so LEGALLY
Spain and Portugal colonized much or south america.
The answer is: The framers formed a bicameral legislature as a compromise between small states, which wanted equal representation in the legislature, and large states, which wanted representation based on population.
It would be migration and size