Out of curiosity CF, which of our "ancestors" was it exactly that assimilated with the native tribes when they came to this country ? Seems like they did alot of things and dictating how we live was pretty much in the top 3.
Straw man argument. All of us, including the Native Americans, came from somewhere else and if you look back far enough .... have been persecuted or taken over by someone else at some time or another. I'm Irish, Cherokee, and English so I guess I'm both a victim and a criminal in your eyes. This would point to why we can't live in the past but move forward and try not to make those same mistakes.
The United States Constitution was adopted on September 17, 1787 and included Article I, section 8, clause 4 of the Constitution expressly gives the United States Congress the power to establish a uniform rule of naturalization. It was at that point we became a nation of laws and as the preamble the states these laws are to "secure the Blessings of Liberty to ourselves and our Posterity". Posterity means future generations.