"We don't want cheap goods per se, we want goods to be cheap relative to our incomes." That's what would actually make it possible to buy more things. Decades of stagnant incomes plus "free trade" agreements -- which are actually free-capital-from-regulations agreements that enable offshoring and union-busting -- do not add up to that.
See the whole 27-page comic at Economix Comix: The Trans-Pacific Partnership and "Free Trade"
For more information, see: Public Citiaen: Trans-Pacific Partnership (TPP): Job Loss, Lower Wages and Higher Drug Prices, Expose the TPP, The Nation: NAFTA on Steroids, and my discussion of the TPP in Politics Upside-Down: Fictional Campaigns, Invisible Issues, and Disappearing Jobs.