they are whatever the fuck they wanna be asshole
that doesnt concern you

uh maybe you shouldn’t ask this so bluntly
questions like this usually make people dysphoric and you could always just look at giggys profile

ive come to beat a dead horse

sex and gender are not the same thing, so, asking someone their physical gender is wrong inherently because youre not using the correct term. thats the main reason im saying anything, as these two things being confused is kinda harmful, and you shouldnt confuse them, or if you didnt know, you shpuld be aware of the difference

sex – physical attributes, mainly just genetalia, as you can change your physical traits with hrt
you can also change your sex via surgery, not fully, as trans men cant get fully functioning penises, nor trans women fully functioning ovaries (yet) but still pretty decently

gender – your identified position on the gender spectrum. this is more mental, but oft results in one changing their body to match their gender. however that does not make sex and gender the same thing

neither things have to match, you dont have to be a boy because youre male, or a girl because youre female. so, asking gigans physical sex is irrelevant. also just asking it out of the blue and so bluntly, especially given your homophobic track record, you dont come off the way you want, but i dont figure the way you want is good to begin with. anyway, dead horse beaten