Question to HN readers who are sympathetic with this article:  If you could wave a magic wand and "undo" all that was done, would you do so?  So imagine all those who perished in the 1500's would be revived from the dead and restored to their ancestral lands, all those living in the Americas now would be sent back to England, Ireland, China, etc, with a one way ticket and $10K in cash to start a new life.  Would you wave your wand and cast this spell?