Reply #90: yet in 1860 our population was only 31 million

[hfojvt]

today it's over 300 million. I'd say our need for new blood is considerably less. Also, I'd like to see some evidence that the new arrivals were good, or will be good, for the people who are already here.
The arrival of my ancestors was certainly not good for the native Americans. Will more immigrants be good for the descendants of my great-grandparents?

"If there is any law that has been consistently operative in American history, it is that the members of any established people or group or community sooner or later become 'redskins' - that is, they become the designated victims of an utterly ruthless, officially sanctioned and subsidized exploitation." Wendell Berry "The Unsettling of America" p. 4