It's this mindset that killing is an absolute moral wrong - this mindset that many fans will recognize as a symptom of Batman's severe mental illness, that has pervaded western society. So while criminals get a pass, people that kill in defense of themselves, others and society get lambasted as monsters. This mindset is not logical, it's not healthy for society and it's been turned into a tool to pacify people.

Thankfully in the US it's only partially taken root - you can see the end result of this in the state of the UK and it's self-defense law.