…because that’s how language works?

If someone shows me a person and asks if that person is a woman, it will depend on “whether i perceive them as a woman in that moment”

If we’re talking about gender as a social concept in society, a woman is “a person the majority perceives as a woman”

If we’re talking about one’s identity, a woman is simply “someone who perceives themselves as a woman”

If we’re talking about genetics, a woman is a person with 2 x chromosomes, if we’re talking about primary sex characteristics, a woman is a persob with a vagina (or do we wanna limit it to having had one from birth? Both yes and no answers might be relevant depending on the context), etc.

even if you take gender out of the picture entirely and pretend like someone who looks like a woman, sounds like a woman, behaves like a woman somehow isn’t a woman, you’d still need context to define it.

It’s also a question that I have never fucking asked myself in my life in a general sense, because it’s utterly irrelevant except in very specific contexts.