They blamed the Allies for their evil expansionist Empires - even while they - the Germans - were committing horrible barbarities and expanding their Empire.
This species of rhetoric - blaming the enemy for what you yourself are doing - is called "projection".
Note that I didn't say that your post justified raping and burning. I said that your post mirrored what the Germans were saying as they were raping and burning.
The Germans loudly declared the moral turpitude of their enemies even as they - the Germans - committed bloody massacres in Western Europe.
It is undeniably true that even today - on this very thread! - people are still excusing the real sins of Germany, on account of the theoretical sins of their enemies.
No, the Allies weren't at all expansionist--perish the thought. As a result of the war, they didn't help themselves to one square inch of the Central Powers' territory--or did they?
Much of the "rape, murder and arson" committed by the Germans turned out to be fiction generated by Allied propagandists.