According to woolf, why don`t we know about shakespeare`s sister?

The reason many have not known about Shakespeare’s sister is the fact that she’s a female. According to Woolf in her account ‘A Room of One’s Own’, she projected a female Shakespeare that bears the same talent and wit as that of the male Shakespeare however, got denied and rejected of the society’s approval and acknowledgment because of her gender.

Something that was made by us humans rather than being found in nature