South Korea is extremely overpopulation for it's land area. The world just added 1 billion in the last 13 years, and mainstream environmentalists won't even mention it. When are we going to stop promoting the growth of cities, and repopulate rural communities?
Capitalism and overpopulation is incompatible. I don't think we want to give up capitalism, so lets find ethical solutions to overpopulation. It's the only way future generations can enjoy individual prosperity without the rapid depletion of natural resources. It's the only way they can have their cake, and eat it too.