What happened the last time we listened to a general in attacking North Korea above the 38th parallel?
Oh right, MacArthur brought about China's formal introduction to the war and forced the UN's force to retreat for nearly a year.
Why do you think conservatives have been trying to rehabilitate MacArthur and destroy Truman's global consensus for the last 60 years? Check out the "relief of General MacArthur" Wikipedia page, which is full of apologia and featured insight from none other than Samuel "Clash of Civilizations" Huntington.