I really hate to tell you this -- or perhaps remind you of things you know but would rather forget -- but both Roosevelts were as imperialistic and meddlesome in the affairs of others as anyone who came after them.

Teddy and his dispatching Taft to Asia in 1905 arguably created many problems in the Pacific for the US that you tend to ascribe to the Cold War. A lot of them are still with us. That and the Great White Fleet were Empire building at its finest...

As for FDR, all the illegal crap he did to get the US into WW II and his deliberate actions to bankrupt the United Kingdom and France to get both out of the Colony business so US commerce could get into those former colonies make him a major troublemaker by your lights.

You often make some good points but your desire to sugar coat US history undercuts your efforts all too often.