And my personal beliefs about life and what it means to be human in my very finite time here goes far beyond "well the economics work out better if I'm barren forever and the government imports immigrants with higher birth rates due to being from a third world country". I strive to have a complete, well rounded life with a loving family. At the end of the day, my life goal is not to live an " economically logical" life void of emotions. I have 90 years here, if I'm lucky. I AM going to live a full life.
There is nothing wrong with immigration, but the fact of the matter is you can't strip all emotion out of the equation. You can say its overly emotional to want your own family instead of importing people with completely different cultures and values, but the drive to reproduce has been in the works for 3.5 billion years. Having others reproduce for you so the government can get an extra dollar out of isn't enough of an incentive to kick the repro drive.