That I should've gotten more sleep when I wrote that.
Long was authoritarian and he used violence to further his goals but he was populist and not strictly ideological, more pragmatic. So he's more akin to postwar Latin American dictators, than the European equivalents during the interwar and, war.
I feel that FDR was a caudillo-lite in his way, as the country was undergoing immense crises at the time and he exercised and expanded great amounts of executive power for a president. I picked Vargas because idk, he seems less militaristic than Perón I guess and he also died while in office. Maybe there's a better analogous leader.
As a 7th generation Louisianian, my initial read was "what in the world is this guy talking about?" .... what sort of violence do you mean? and please come up with some incidents supporting your position? Huey was bombastic, loved Ramos Gin Fizzes, LSU football (and the university) and could be authoritarian, but using violence to attain his goals....hmm