I wasn't going to reply to the OP as there is once again an erroneous and incorrect analogy with the Germans in War II. That merely lowers the quality of the discussion, as well as being historically correct. Godwin's Law applies.
Further, though, Prussia was the aggressor in 1806, not the French and after the Prussian Army was for all intents and purposes destroyed on 14 October, the Prussian state also collapsed and there was no resistance from the Prussian population who submitted meekly to the French.
You cannot judge the Confederation of the Rhine from the example of Westphalia. And it should be noted that the allies in 1813-1814 took from the states of the former Confederation more in supplies and manpower than Napoleon ever required of them, with the exception of Bavaria.
Lastly, the vaunted 'war of liberation' was nothing more than the Prussian objective of 'liberating' as much of western Germany that she could get her hands on.