>>95626069He was thinking that the word child is neutral in the English language and Luke Cage was mostly using that one up to that point as to unconsciously distance himself from his newfound, unexpected fatherhood that might conflict with his "tough guy" act, so his significant other Jessica Jones, who is also the mother of their child, remarks that their daughter is in fact a gendered human being whom his father needs to embrace fully and be close to since, as she explains, she will already grow up in a weird manner due to her superpowered ancestry, which might make her more prone to psychological issues.
tl;dr fuck off idiot
