Then we should have rates for max 10's, and justify that with pax economics.

Trying to argue that we should get something because somebody in a different industry operating different equipment has it will not compel management. That's like saying we should all get $1M because that what neuro-surgeons make. Little to do with the price of tea in China.

Argue based on OUR economics. Make it logical. Or argue based on the fact that all the pilots will strike, or that half of them will simply leave within a year. Fear of consequences is more compelling anyway.