Let us not confuse bimodal distribution with binary distribution. stats 101. There is considerable overlap in biological features that are regulated by sex chromosomes and sex hormones, such that there is considerable heterogeneity within each sex.

Also these dismissals using 'but most people' are ironic; the exceptions disprove the rule of a binary, an imaginary binary that is then used to dismiss the rights and reality of sex and gender diversity. Its cake and eat it too thinking.