The personal attack is unwarranted. And I'm not sure what libertarianism has to do with math. If you're worried about population decline, it's birth rate (bir

The personal attack is unwarranted. And I'm not sure what libertarianism has to do with math. If you're worried about population decline, it's birth rate (birth per capita) that matters, not TFR. It doesn't matter if your TFR is higher, but your replacement rate is lower.