Very consumeristic view. How to exploit genders and optimize benefits (for ==self==).
Recent research say 'genders' are very much:
1) genetic (chromosomes X and Y);
2) environmental temperature (at the time; 33C --> male; hotter --> female); and
3) hormonal survival mechanisms (male turns into female; female turns into male; all female groups produce 'clones' as a reproductive means)
These are 'physical' genders (enforced by Nature) to add to (y/our) cultural genders and rights and behaviours and so on...