No one's talking about two ways.
One can have a fulfilled Western life and have a nuclear family with a minimum of three children, guaranteeing the maintenance of that way of life for the next generation.
It's not an either/or proposition.
You imply that there is no middle ground between irresponsible license and government-mandated breeding programs.
But there is a middle ground: self-respecting people with self-control, choosing to to say yes to the future.
That may be, or it may not. It depends entirely on the individual.