On which level? There’s two intended morals here—one is the analogy to global poverty and open borders; the wonderful world is the West and Hell is the Third World. The other is the explicit one in the last sentence: what problems in the world are you missing, simply because they don’t affect your life and are therefore easy to overlook? And particularly the point that it doesn’t take anything special to notice—just someone without preconceptions who sees it and then refuses to look away.
The particular choice of analogy is inspired by Unsong.
The only concrete change specified here is something you’ve previously claimed to already do. This is yet one more instance of you not actually changing your behavior when sanctioned.