The issue is not replacing the population - it's WHO we replace them with. Why should immigration be based on family ties (I'm not talking about immediate family - your spouse or own kids but all the other relatives)? Why not on a merit-based system to get immigrants who are a plus to our society, who don't need to be taught English, who have education and skills we need - who aren't a drain on our society. How about thinking about what's good for this country instead of allowing in every Tom, and Harry- regardless of whether they will benefit us? That's what Canada and I think Australia do (please notice how Australia protects their country - refusing to take those refugees and palming them off on Obama and the US).