What demographic crisis are we facing, we're already taking in a million people a year legally, more than the entire world combined. Pretty soon the whole world will be here, then what are they going to do to keep the economy expanding, import space aliens?
A million people a year isn't much for America which has 300 million people. Canada for example is letting in 250k for a population of 30 million.
I've seen graphs of how it brings down their average age, and brings up the the worker-dependent ratio even much more.
Into the future, like 30 years I dont' think most politicians think that far ahead. I would assume by that point they will be looking at automating away a large portion of the work. ---
Or even better if they can stop abortion, and rebuild the family, plus limit hte benefits going forward.. there wont' be an issue to worry about.