... not to mention what happens to unborn "children" (are they included?) if still in the womb or at what point are they included in the womb, people in that fraction of a moment between life and death and would die anyway or during committing suicide or being revived on an operating table? Plus the Marvel Universe is full of "beings" (half of "beings" to be "killed") and not just humans, so multiple planets and species, but what defines an "alien" as a being and what defines an animal, plant (say groot) insect etc?
Oh the complications that Infinity glove has in deciding!
Or you could do what I did before you asked the now disturbing question and think - meh, I cant be bothered, they'll be back in the next movie anyway. I was so blissfully ignorant then.
Thanks for that ;-)