I'd say you're just a misanthropic ENTJ. I say E because you seem like a Te-dom to me. You're leading with logic, and you've said you don't value people's feelings. Ni- secondary because you think through every little potential outcome of a situation to such a degree that you've even decided which types of deaths you don't want to cause, etc. Se is tertiary, you're quick on the draw with your examples, you're scanning the potential descriptions for anything that doesn't fit, and you're picking it apart, breaking it open, checking your list of Te-structures and spitting out a quick response and theory. You even add some further speculation with your Ni.
I say ENTJ and not INTJ because of your energy. Fi-inferior cause man, are you an anxious ball of nerves and unprocessed/unintegrated feelings. Everything is put in its neat, nice tiny package that you have controlled and accounted for. No room to just go on gut instinct.
Eh, but what do I know? I'm just going on gut instinct, anyway. You feel like an ENTJ I know.
Can you tell what people are really feeling about you? Can you foresee how their feelings might affect you in future endeavors? How tolerant are you of explanations that aren't concrete and requires that the person take a long time to describe how they feel?