The US Military has a carefully designed culture of excellence and superiority. We have a military that has been the envy of the world since WW2.
Obama has been attempting to destroy that culture. Introducing gays, women and transgenders into the ranks is part of his plan. Forcing political correctness into the ranks is another part.
Firing those who resist the culture change is the big hammer.
The introduction of gays in the military occurred before the occupier became resident. Remember don’t ask, don’t tell? Obama just took it a step further.