No, you are projecting. FDR was totally fooled by Churchill since before the war started. Churchill conned FDR something good. Churchill got FDR to act in England’s interest, not in the U.S. interest.
I don’t think I’m projecting. Many historians have said the same thing. FDR liked Stalin better than Churchill. He did what he intended to do.
If he was conned, it was by his own delegation, which was CRAWLING with Communists.
The same thing happened in World War I. England uses every dirty trick in the book to get American muscle to enforce their foreign policy.