America is also a strong counterexample. FRED says that Americans work 1788 hours per year, and that the fertility rate is 1.61.
Even if you want to adjust for ethnicity (you’d need counterpart data for work hours by demographic; The Week has data that might fit well enough), U.S. Whites have about the same birthrate as U.S. Blacks despite a large gap in work hours, with Hispanics being the only outlier in birthrate yet sitting directly between the two in work hours. If you filter for U.S. Whites specifically, for a more direct comparison with Europe, you still see substantially more hours worked and a substantially higher birthrate.
America is also a strong counterexample. FRED says that Americans work 1788 hours per year, and that the fertility rate is 1.61.
Even if you want to adjust for ethnicity (you’d need counterpart data for work hours by demographic; The Week has data that might fit well enough), U.S. Whites have about the same birthrate as U.S. Blacks despite a large gap in work hours, with Hispanics being the only outlier in birthrate yet sitting directly between the two in work hours. If you filter for U.S. Whites specifically, for a more direct comparison with Europe, you still see substantially more hours worked and a substantially higher birthrate.