When in Paris, do as the Parisians.
I went to high school for 2 years in France. I learned how to be very good at pushing and shoving through lines. It was the only way to get lunch at the cafeteria.
Fortunately, I unlearned these habits on my return to the U.S. Consider the gate situation in CDG as part of the cultural experience, not something to get worked up about. Far be it from AA to try to change French culture!!!!!