We went through this at Air Canada many years ago, just as now it drifted into politics rather than keeping it within aviation, the result was not pretty and did little other than raise the blood presure of a few. During this time I chanced to fly with one of the main players in the dispute, so I sugested we do the whole cycle in French and see how it went, the problem was he didnt know the technical terms in French for such uninportant things as flaps/gear/trim and a whole bunch of stuff, go figure!