Again, you are deliberatly avoiding another point of my argument. Self defence isn't the only reason to excuse him from being a murderer, killing in the immediate defence of others, as i said, is also valid. It's not the same as the Axis Chemicals scene if he is doing it in the immediate defence of other people.
See that image you posted of him shooting from the plane? Well, you don't see it there(presumably because it is cropped), but iirc there is a speech bubble in that panel with Batman saying 'I hate taking human life, but here there is no choice...' or words to that effect. and iirc, that is from the same situation where he hangs the Hugo Strange monster man from the plane, as he sees no choice but to kill them when they are on their rampage.
That's not the case with the Axis Chemicals scene, there was a choice, there were other options.
and neither of us know the context of those two panels where the bat-wing/plane blows up a building, so it's not proof of anything until we know, right?