Why Liberalism Works

You could just title the book, “why naive view of the world doesn't work.” I gave up after 1/3rd of the book. Author thinks buying cheap from abroad is the great, because free market. What if you are buying from someone who uses that money to conduct genocide, use slave labour, child labour, sponsor terrorism or just exploit workers? How do you factor in human rights into the price? Liberalism, rule of law, human rights, they don't just happen.