Who's lost what?

I always love it when Hanson gets comparative. About those (the majority?) who say that Iraq is lost:

What would these same critics say to Abraham Lincoln in May-June 1864 (“Each hour is but sinking us deeper into bankruptcy and desolation.”) when Grant’s Army of the Potomac tottered at the brink (Spotsylvania [ca. 18,000 casualties]; Cold Harbor [ca. 13,000 casualties]; Petersburg [ca. 12,000 casualties), prompting calls for an armistice on the basis of a status ante bellum, and the real prospect not just of Lincoln not winning the election of 1864, but perhaps not even receiving the Republican nomination? Or what would the pundits of the Kennedy School of Government or the Council on Foreign Relations have said about retreat from the Yalu River in November 1950 (ca. 14,000 casualties)? Korea is lost? We destabilized the Korean peninsula? We only empowered the real enemy Russia in Europe?