Something like 2,400 people killed and many billions of dollars of ships and infrastructure destroyed, and you are comparing it to the sanguine eviction of occupiers from Sumter?
You've gone round the Pearl Harbor bend. Anyone who compares the two things is not a rational person. They have no grasp of scale.
So if the Japanese had bombed the faclities and sunk the ships but through some miracle nobody had been killed then would you say, as central_va seems to believe, that Roosevelt should have declared a cease fire and request negotiations? Or should he have pursued the war that had been forced upon him?