It’s both

Literally everything by Cleopatrick and Primitive by not enough space

Put a hundred toddlers on an island. Leave a few older children that will disappear a few years later that are taught to fish/hunt/gather. See what kind of language develops, or what kind of civilization. How many survive?

It is VERY unethical. Add variables to other islands, such as the amount of children, and what you teach them.

Just my assumption, but their party preys pretty heavily on the lower class. The lower class not having easy and cheap access to birth control makes it easier to produce more lower class.

They don’t care about having as many babies as possible. They care about generating more voters.