Imagine a comic strip where the Joker is holding a kid hostage at gunpoint. With his other gun he repeatedly shoots random people on the street. Batman shows up but does nothing, for he doesn’t want the boy to die. Bam, another passerby dead. And another. Bam-bam, this time it’s a twofer. Then Superman shows up and eye-lasers the Joker cleanly in half along with the kid.
Whose action resulted in fewer deaths?
Thanks for the non-dismissive reply and for the additional context. Just to clarify, I have only voiced my view on the “avoid killing innocents when others are in danger” situation - I admittedly lack the knowledge regarding the big picture to be able to pass judgement or offer solutions. But it seems the answer to your last question is pretty clear: everybody involved in this situation in any way is bad for some degree.