Imagine that there are two types of people, the first kind prefers having more children to having more money, and the second type will prefer to have more money and fewer children.
The people who want children over money will have more children than they can afford. If you give them more money they will simply spend it on having more children.
The people who want money over children will get lots of money and have few children. The few children they have will have few children of their own, and lots of money. If you give these type of people more money they will simply invest it and not have more children.
Inequality will rise.
The poor will say, "give us more money!" But if you give them more money they will simply have more children.
And if they have more children they can't afford they will simply stay poor.
Fuck the poor. Don't give them money.