You are quite wrong, it was wealthy conservative Republicans who initially supported the fascists.
Charles Lindbergh, for example, atended Nazi parties in 1935 Berlin.
"A number of prominent and wealthy American businessmen helped to support fascist regimes in Europe from the 1920s through the 1940s. These people helped to support Francisco Franco during the Spanish Civil War of 1936, as well as Benito Mussolini, and Adolph Hitler.
Some of the primary and more famous Americans and companies that were involved with the fascist regimes of Europe are: William Randolph Hearst, Joseph Kennedy (JFK's father), Charles Lindbergh, John Rockefeller, Andrew Mellon (head of Alcoa, banker, and Secretary of Treasury), DuPont,...