They want Americans back so they can have someone to thumb their noses at.
Some frog spokeslady, early on in the boycott, said something like "If your waiter steps on your toe 'zat is joost ze Fraunch expaireeaunce". Or words to that effect.
Me, I don't pay good money to be scorned or humiliated. Every news story of frogs hurting because of Chirac brings a little ray of sunshine into my life. Go Dubya. Hee Hee!