arguing is a proof he is actually listening to you but may have a different opinion,which obviously you dont accept...
You've got that right, I don't accept.
The trainee is the trainee,
not the instructor.
In reality, the trainees opinion simply doesn't count, because...the instructor is actually paid by the airline to instruct, not listen to some nonsense ideas from junior pilots.
Junior pilots are just that....junior.
Not likely to change anytime soon, either.