Every dataset tells the same story. Every demographic study confirms the same pattern. Religious populations reproduce. Secular populations don't.
This isn't opinion. This is the most replicated finding in demography:
| GROUP | TOTAL FERTILITY RATE (TFR) | REPLACEMENT? |
|---|---|---|
| Ultra-Orthodox Jews (Israel) | 6.6 | YES (3x) |
| Amish (USA) | 5.3 | YES (2.5x) |
| Traditional Catholics (Global) | 3.1 | YES |
| Evangelical Christians (USA) | 2.3 | NEAR |
| Muslims (Global) | 2.9 | YES |
| Secular/Unaffiliated (Global) | 1.3 | NO |
| Atheist (Europe avg) | 1.1 | NO |
| Japan (Secular majority) | 1.2 | NO |
| South Korea (Secular majority) | 0.72 | CRITICAL |
Replacement rate is 2.1. Below that, a population shrinks. Below 1.5, it enters demographic death spiral — a point from which no modern nation has ever recovered.
Every secular society on Earth is below replacement. Every one. No exceptions.