[Torie]

How do you explain the fact that 'deprived' Russians don't have a much higher birthrate?

That is a good question. All the Slav nations have incredibly low birth rates. And not all are subsidy and femimization city. Here is a list:

Bulgaria         1.13
Czech Rep        1.18
Slovakia         1.25
Russia           1.27
Belarus          1.28
Slovenia         1.28
Ukraine          1.29
Poland           1.37
Yugoslavia
 (Serbia/Mont)   1.75
Macedonia        1.79
Croatia          1.94

[A Ruckus of Dogs]

To answer the query about why there are low birthrates in the industrialized world, I think it's the level of sophistication of a culture. People want time to do other things, to experience other facets of their cultures. Having a lot of children gets in the way of that. Having 0,1, or 2 children allows time, energy, and income for hobbies, trips, clubs, and finer things.