correct, Killer Queen is merely the name of the Stand, Stands inheritly have no Gender or Sex. Killer Queen is merely It's name, like how Star Platinum is neither a literal Star or made of literal Platinum, or how The World is not a planet, or how Highway Star is not a Highway or a, once more, Star.
I feel like killer queen is a guy but goes by the name "killer queen"
maybe he's transgender? idk
Stands don't specifically have genders, as they aren't their own beings, only manifestations of people's power, therefore Killer Queen would be male because Kira is male
(ok this might sound dirty but I don't want to offend anyone or mean it in a bad way) but I think Killer queen can be male because he doesn't have oppai
Stand's aren't living things, they don't have gender, as i explained prior, they are simply your soul's own psycological reflection
The thing is the queen of killer queen name is even there in the Localized Name being deadly queen so i think killer queen is female because think spice girl the fact that it is female is in the Localized Name spicy lady they could have changed it to like killer king or anything similar but it was allways called a female.