There is a demographic reality today that you are going to have to accept. There is also a demograpic reality 20-25 years down the road that younger people of today will have to accept when that time arrives. There is a demographic reality 50 years down the road that even younger people of today will have to accept.
As for the cultural aspects and our heritage, I can tell you that I am descended from William Bradford. We started this country as a white, anglo-saxon, protestant nation. Thru the years, and because of immigration, the original culture and heritage has changed. So if the culture and heritage changes further, so what.
"What are you going to do when the worker to retiree ratio reaches 2 to 1?"
Aaahhh... So I'm supposed to sacrifice my personal economic interests to support the retirees? Now we have your real agenda. Socialism!
I propose we keep government spending fixed in relation to GDP. Looks like the boomers should have planned better for their retirement.
"Without this, the EU would quickly overtake the US. Have you seen the economic models of that?"
Take your pick. Increased overall GDP, or a better standard of living with a lower population and a GDP that expands a little more slowly. I'll take the better standard of living, thank you very much.
"Thru the years, and because of immigration, the original culture and heritage has changed. So if the culture and heritage changes further, so what."
And undoubtedly we will build upon this fine heritage as time goes by. What does a huge number of unassimilated immigrants who do not share our values or heritage, and care nothing for it, contribute? I really don't care to have their language and culture shoved down my throat.