Yes.
Thjs is what you said:
What worries me most is that the only successful model that has kept us in business in the US has been continual growth, both in GDP along with the necessary population increase to sustain that.
The idea that economic growth requires population growth is false. I pulled up the most obvious example against this theory, and it did no good. I then tried to point out what actually does drive economic growth, and that didn't work either. And frankly, I'm not interested in trying to explain it again.