Honestly, I agree with some of your arguments, but your claim is just false, because most of your arguments are false. (And I don't mean in any way shape or form that I think you're lying or anything of that nature.) This is where your claim falls apart:
1. "Wilson had the upper edge" in the relationship between Great Britain and the United States. This is not true for more than a few reasons, but the greatest reason is explained best by Ricardo's economic maxim "that men don't cut the throats of men who are putting food on their tables." The U.S. was as dependent on England buying our goods as they were dependent on our selling them goods. The U.S. was dependent on Great Britain's protection of its global markets, they were not are only customer. Economically, we were still under the umbrella of the British Trade Alliance. The British were blockading our trade as a
"neutral" with countries the U.S. declared "neutrals" (because until 1917 Americans were still selling to the central powers when they could) so many or our usual European markets were closed to us. Neither country had the "upper edge" and at best it was a draw. Also until 1917, Americans were still exporters of raw materials not finished manufactures - Great Britain was ou main supplier of finished goods.
When the argument is made that Great Britain had only enough food stuffs for 6 to 8 weeks, this is understood to mean that the people faced starvation. Again, this is not supported by the facts - the problem wasn't that they didn't have food, the problem was the lack of food distribution, with the choice between feeding the people or feeding the army. They couldn't do both because of the problems in distribution - it was just easier to explain to the public that "the Brits are starving" than to explain the intricacies of distribution.
2. The U.S. in the period of 1914 to 1918 did go from a "debtor" to "creditor" nation, but I've explained to you the reason for that - the foreign investment had dried up - when you examine the economy of nations, you don't look at the debt as much as you look at the kind of debt the nation is carrying. I cannot impress upon you enough the importance of this. It is vital in your assessment of the economics of this war. (As an example of how symbiotic the economies of the two countries were, consider the fact that Great Britain outfitted, armed and transported half the AEF who were sent to Europe.) Also, people forget that the war in total, (including labour, military, goods produced, interest on loans etc) cost the U.S. over 32 Bil. dollars, most of which was in delayed payments due in the 1920s. The government didn't "make money" on this war, the government owed money on this war. ALL governments lose money on war, because there is no return on investment. Now that isn't my opinion, that is Economics 101. (Remember that in 1914, it was illegal for Europeans to invest money overseas, they were obligated by law to bring it back to their own nations.)