Personally, I think that instead of resorting to the nonsense of "intertwining economies will force the United States to acquire international commitments and get involved in global security," I would focus efforts on convincing the American population that what is happening in Eurasia is not "the problem of another person."
That is, in OTL the approach of "intertwining economies" was attempted (the main reason the USA entered World War I was because the bankers started screaming in fear because, if Germany won, they would lose all the money they had been given). lent to the Entente) and the result we got was isolationism and the Great Depression spreading to Europe when those bankers demanded the money back NOW.
In addition, of course, to the growing belief that the American population had been dragged into a stupid European war solely by the greed and desire for economic benefits of a handful of very rich bankers.
That is why it would be necessary for the people themselves to commit to that direction, instead of something imposed by a handful of unelected bankers.