I'm with you.
FDR did more to bugger up post-war internal and external politics for America that just about anyone I can recall. Our bloated federal mess is but one example. The expansion of the Soviet state was another. I could go on.
Carve up a mountain for the Gipper, but name the public restrooms there in honor of FDR.
Well, I'd say something, but I have an urgent need to go to the FDR at the moment.
Technically, FDR did not see the end of WW II. But Alger Hiss did. And Hiss was working out of the back pocket of Stalin the whole time. Even when Hiss was fingered (by Whittaker Chambers), and the files of the KGB were finally made available after the fall of the Soviet Union, there are those who cannot or will not admit Hiss was a spy and agent working for the interests of the Soviets and Stalin.
And FYI, during the 1930's, "Dutch" Reagan was very much a New Deal Democrat, and an admirer of FDR. Said so himself. Check his biography, "Where's the Rest of Me?" Reagan did undergo a transformation sometime after the Second World War, so he probably fits the definition of "neo-con".