There is no single, universally agreed-upon number of genders.
The concept of gender is complex and multifaceted, encompassing biological sex, gender identity, and gender expression. While biological sex is typically categorized as male or female, gender identity is a personal and internal sense of being male, female, both, neither, or somewhere along the spectrum.
The reference indicates that some lists include 72 genders. However, this number is not definitive and varies greatly depending on the source and criteria used. It's crucial to understand that gender identity is a personal experience, and individuals may identify with a gender that is not listed or may create their own unique gender identity.
Therefore, while some sources list numerous genders, the actual number is fluid and reflects the diversity of human experience. The key is to respect each individual's self-identified gender.