There really is nothing wrong about wanting your local region or local airport to be successful and reach its potential. You need to get over yourself.
The point is Yorkshire is a big enough and successful enough region (without having to be helped out by central govt) to expect an airport that suitably serves it. The airport is far from ideal in many regards but can do a lot more to redress the unfair balance the MAN has gained.
That is what Yorkshire people are demanding and it will happen just as the growing BA shuttle service has taken passengers away from MAN.
I can well understand why MAN are putting posters up all over West Yorks. They know the importance of every single Yorkshire passenger that they lose.