Increasing the birth rates of first world countries is a pipe dream.
Many people think that it's some kind of conspiracy against whites. They think that the elite billionaires are somehow brainwashing their women into being childless. Some people believe that it's because of money. It's too expensive and that people can't buy a house to raise a family.
But they never talk about the main reason, it is because they can't solve this currently. It is that, being pregnant is extremely uncomfortable and taxing on the female body. Then raising a child is also very annoying. Your have to change their diapers and all that crap. Most people simply don't wanna do it. And then there is nothing much a parent can gain from raising a child. The child may become grateful or ungrateful. But there is no guarantee.
Another thing is that African American birthrates are even lower than that of whites Americans.