Because as a military historian, I don’t believe he deserves it.
And, frankly, I always find it amusing that Americans are so quick to criticise him when they come from a nation that did its level best to avoid getting involved in combat in either World War despite clearly deciding near the start of both wars which side they supported.
Apparently it’s a virtue for Americans to avoid major wars until there’s no choice, but not for anyone else to do it. I think it’s a virtue for all.
I believe you fight when you have to - and I spent over twenty years in uniform and went to war myself when my country called - but you don’t fight a war you’re not ready to fight unless you have absolutely no choice.
Si vis pacem, para bellum - but give peace a chance.
The time to stop Germany was when it stopped paying the reparations they owed for WW1 and used them instead to build a military that was in violation of the Treaty.
After every concession to Germany, the Allies closed their eyes and hoped it would be the last.