That is an excellent question, and you are surely not the first to ask it.
These are the most relevant resources I could find:
Is The Collapse Of America Inevitable?
The Decline & Fall of the West: Stephan Molyneux & Dr. Jim Penman
"The Death of the West: An Examination of our End" Series | Stefan Molyneux
Why Social Justice Is Satanic & We Need Religion to Defeat It
The End Goal of Western Progressivism is Depopulation
A nice man I follow on YouTube wrote a book on this-Enjoy the Decline: Accepting & Living With the Death of the United States
Hope that helps ♥
P.S. I liked your book. Advertising it on a dating site was a brilliant idea