This quote is invoked regularly by protectionists in their not so subtle, yet feeble, attempt to impugn proponents of freer trade as traitors. The following quotes were pulled from another thread and, unfortunately, I don't remember who researched this to offer the proper attribution.
Is it convenience or ignorance that causes these other quotes to go unnoticed? Or, are protectionists as bad at history as they are at math?
"I think all the world would gain by setting commerce at perfect liberty." --Thomas Jefferson to John Adams, 1785. ME 5:48, Papers 8:332
"It [is] for our interest, as for that also of all the world, that every port of France, and of every other country, should be free." --Thomas Jefferson to Lafayette, 1786. ME 5:346
"Instead of embarrassing commerce under piles of regulating laws, duties and prohibitions, could it be relieved from all its shackles in all parts of the world, could every country be employed in producing that which nature has best fitted it to produce, and each be free to exchange with others mutual surpluses for mutual wants, the greatest mass possible would then be produced of those things which contribute to human life and human happiness; the numbers of mankind would be increased and their condition bettered. Would even a single nation begin with the United States this system of free commerce, it would be advisable to begin it with that nation; since it is one by one only that it can be extended to all. Where the circumstances of either party render it expedient to levy a revenue by way of impost on commerce, its freedom might be modified in that particular by mutual and equivalent measures, preserving it entire in all others." --Thomas Jefferson: Report on Foreign Commerce, 1793. ME 3:275
"An exchange of surpluses and wants between neighbor nations is both a right and a duty under the moral law." --Thomas Jefferson to William Short, 1791. ME 8:219
"It is impossible the world should continue long insensible to so evident a truth as that the right to have commerce and intercourse with our neighbors, is a natural right. To suppress this neighborly intercourse is an exercise of force, which we shall have a just right to remove [with a] superior force." --Thomas Jefferson to Thomas Mann Randolph, 1790. ME 8:33
"Our interest [is] to throw open the doors of commerce and to knock off all its shackles, giving perfect freedom to all persons for the vent of whatever they may choose to bring into our ports, and asking the same in theirs." --Thomas Jefferson: Notes on Virginia Q.XXII, 1782. ME 2:240
"The system of the United States is to use neither prohibitions nor premiums. Commerce there regulates itself freely and asks nothing better. Where a government finds itself under the necessity of undertaking that regulation, it would seem that it should conduct it as an intelligent merchant would; that is to say, invite customers to purchase by facilitating their means of payment, and by adapting goods to their taste. If this idea be just, government here [in France] has two operations to attend to with respect to the commerce of the United States: 1, to do away, or to moderate, as much as possible the prohibitions and monopolies of their materials for payment; 2, to encourage the institution of the principal manufactures, which the necessities or the habits of their new customers call for." --Thomas Jefferson to John Jay, 1788. ME 7:218
All your quotes add up to is one point of view. In any case, Jefferson didn't have to contend with the information age, Walmart, and the overwhelming success of global capitalism. He helped lay the conditions for globalism, but he wouldn't have been constrained by its success. He would have known that government-subsidized labor from a sworn enemy of the United States was something to blockade. He would have known that IT workers from a nation with starving people could be desperate enough to underbid American workers. He would have laughed at your pathetic attempts to put his ideas about post-colonial trade in a 21st century context.