While it's true that individuals with two X chromosomes are usually biologically female, it's important to remember that:

* Gender is complex: Gender identity and expression are not solely determined by chromosomes.

* Chromosomal variations exist: There are variations in sex chromosomes that can lead to individuals with XX chromosomes who identify as male, or individuals with XY chromosomes who identify as female.

Therefore, while XX chromosomes are often associated with the female sex, it's crucial to avoid generalizations and acknowledge the diversity of human experience.