Although thousands of pages of documents are not what Ricardo and Smith had in mind two hundred years ago, they were thinking in bushels of wheat and corn. How the world has developed since then is probably something they never envisioned.
Bottom line is that all those agreements eventually reduce government interference and reduce and/or eliminate tariffs. That's a good thing.
Just look at France if you want to see how a country that protects its inefficient industry prospers.
I don't know anyone foolish enough to believe that.