I did not say that liberal ideas had been brought into a desert Spain by french troops, but that the liberal in Spain had been bolstered by the presence of the french army (at the time, there were also a feeling of hope in some places at the advance of the french army, before the effects of war were felt, because of the aura of the french revolution. A lot of people accross Europe sincerely bought into the Empire=Révolution=Liberty, whereas from the french point of view, Napoleon is a kind of counter-revolutionnary: his politics were of stopping the reform mouvement and give it a conservative tinge that would render it acceptable for a bigger part of the elite.

And actually I'm not saying anything myself: that's just from a book read in spanish two weeks ago about Goya and the people around him.