I’m pretty sure you’re wrong. Truman was the first president to confront the Russians in a direct and honest way. Nixon, whom I’m no fan of, did too. Kennedy talked a good game, but was feckless in the implementation. Naiveté about Russia and communism was not true of all US leaders. On the world stage, Churchill was right from day one. He wanted to strangle communism in its cradle. As for Obama, the number of things he’s wrong on are so numerous as to be impossible to count.
And FDR let the Russians take a pounding at the hands of the Germans and without that strategy, the Russians would have gone deep into W Europe after the war.