The “people on the playing cards” DID lead a band of bloodthirsty criminals and were bloodthirsty criminals themselves. Who do you think organized and carried out the acid baths, the rape rooms, the killings of children in front of their parents, the mass executions in the deserts, the gassing of Iranians and Kurds? Indignity? They deserved the indignity of the hangman’s noose.
Would you erase Bush’s actions and put those criminals back in power? I doubt it. Easier just to criticize in the absence of better ideas. The “playing card” people were not a bit better than ISIS, and a great deal more powerful militarily. But not to worry. Obama put ISIS in power over half of Iraq and Iran in power over the rest of it. So in that way, one supposes, your wish to re-install murderous despotism has been granted.
When the Kurds, the Sunni leaders and the Shia all begged us to stay to maintain the peace, it tells one a lot more than directionless Bush-bashing does about his actions.