Intelligence of the individual matters equally. It just so happens that individuals of a species have intelligences which tend to clump about the species mean fairly closely (low standard deviation).
I think we are fundamentally speciest and there is no way around it.
Of course we are; that's an evolutionary necessity. Even discarding that, to believe that anything is inherently "wrong" or "right" must be based on some fairly arbitrary code if you don't have a god to back you up. Without religion, there is no universal morality, thus some arbitrary decision must be made. The only difference is how arbitrary and what logic is based upon that.
It just so happens that individuals of a species have intelligences which tend to clump about the species mean fairly closely (low standard deviation).
How about babies? Anyway, would you advocate that outliers with low intelligence should be considered morally inferior?
Why is average intelligence for the species you basic qualifier? Why not intelligence of the individual?
I think we are fundamentally speciest and there is no way around it.