When, in 1933, someone asked where was Hitler born, Lady Astor replied at Versailles. The maps below are a clear proof of that. Germany did not just lose West Prussia. The total land it lost was more than the area it had in 1914. The areas in grey are it’s territorial acquisitions either by force or by treaty – whole of Belgium, Luxembourg, Georgia, the Baltic States, Belarus and Poland and more than half of Romania and Ukraine and parts of Russia proper(grey area). A country, in popular perception, winning the war, suddenly is asked to forgo everything and pay an impossible fine, that is what created Hitler.
As a comparision, Germany when Hitler came is below. He was not crushed when there was a chance. The rest was for the world to see.