Right. Increased production leading to increased prosperity.
Here’s the problem: We already live in what economists of a century ago would have considered a “post-scarcity” level of productivity; poverty still exists. It will never be enough to simply “produce” our way out of poverty. Who is entitled to the profits, who has ownership, still matters.
Comparative advantage is measured on an average level, like GNP; free trade still screws over many persons within the society. Unless you’re proposing some kind of neo-Blanquist wealth-sharing, free trade is socially counter-productive.