Thus, it’s the free market or nothing. We are fortunate that the only economic system is on that benefits everybody through the chance of making mutually advantageous exchanges.

This point leads to another argument we can use to defend the free market. In the free market, it’s to my advantage that others do well, because they can offer more goods and services to exchange. This will promote peace between nations. Why go to war with people who are making you better off?

What other way is there to go? You get a choice: trade or the gun, which do you want?