There is also a description of the mechanism whereby the Y chromosome produces the male cells. Did you read it? Did you grasp that there are lots of reactions that must happen at the same time, and occasionally they don't? Did you read about the physical differences in the brains of trans and cis women? Your simplistic declaration that there are two sex chromosomes therefore there are just two sexes, is school level science, which is nowhere near what actually happens. You might as well declare that everyone has two legs, therefore everyone can walk. Everybody has eyes therefore there are no blind people. Drop your prejudice and learn.