Your ancestors were likely "uncontrolled" immigrants and so were mine. That's the way the Western hemisphere was settled. If it's so bad, how did the US and Canada get so rich?
Optimal policy is much different for a post industrial economy than an agrarian/frontier economy, I would rather have better standard of living than consistent ethics
That's possibly true. Is there any evidence? Because there is a thread of racism and fear of the other built into our immigration policies since the beginning, and I don't see that's changed.