Is there not a standard options template that every dev uses? Missing this off is bad.
Listen, BlackWrong. I knew someone was going to go with this argument before I even clicked it, and it might have been you the last time it came up.
I grew up on N64's inverted FPSs too. I used to prefer it but now I can't stand it.
When you move your muscles, you aren't consciously choosing to contract muscle groups that affect the body part you want to move, you just do it. When you or the character need to look up, you look up. You don't think about pulling down first. This isn't QWOP where you control each limb on its own. Most act as if they are the character, not as if the right stick controls a puppet's head from a top down perspective. That puppet - the external control, is why aircraft controls aren't the same as character control for those that invert there alone. We all know that it's a conscious movement to push or pull a flight stick, or whatever the proper name is.
Logically it doesn't hold up past up/down, either. Turning left of right doesn't move your neck infinite degrees, but it does in a game. Therefore the camera/look stick is not a neck control, it's a direct control of where you want to look independent of any specific muscular group.
Then you move onto third person cameras where there could be more arguments either way, but it gets even less consistent. Intuitive controls and consistency are key, which is why non-inverted as become standard across the board. It's still absurd that this game doesn't have the option though, even inverted X should be there despite how ridiculous that is.
It's obvious you disagree, but the way you are doing it isn't helping your case.