[malakhi]

The difference will be that people will work. Without the majority of people working, the only way you can distribute goods and services is through communism.

Or, how about this angle?

There is an inherent inequality in a "free trade" system where one nation is heavily regulated, and the other is not. The only way to make it "fair", then, is to impose the same regulations worldwide. Hey, presto! World socialism.

[Lazamataz]

There is an inherent inequality in a "free trade" system where one nation is heavily regulated, and the other is not. The only way to make it "fair", then, is to impose the same regulations worldwide. Hey, presto! World socialism.

That would require military conquest of all those other nations. Since that is unreasonable, the only option is to apply penalties (tariffs) to uncooperative nations.