IF THE RADICAL REPUBLICAN PLAN WAS GOOD ENOUGH FOR THE SOUTH

then the Versailles Treaty, and then 25 years later, the Morgenthau Plan, were each certainly good enough for Germany!

The Germans and the Allies had agreed to Wilson's 14 Points as the basis for the Armistice in WWI, similarly to how the Confederacy had surrendered under terms Lincoln had promulgated and which had already been acted on during the war in some southern states.

The allies then betrayed the Germans at Versailles and repudiated their commitment, in the same way that the Radical Republicans betrayed the South by 1867 and had repudiated Lincoln's terms of surrender, and under similar conditions.

With unconditional surrender, engineered by the Soviets, there was no opportunity for terms. The Morgenthau Plan was actually implemented on the ground at first until the Marshall Plan was approved and took hold, but it took years, not months.