> This person is male. Could we please avoid the biologically nonsensical charade of referring to him as"she"?

What is your definition of male? "Has the XY chromosome pair?" "Was born with testicles?" "Was born male-looking?" All these have complicated causes and effects, and you will get contradictory answers for some individuals.

Are you aware that fetus development is driven by hormones as much as by genes? "This person is male" is a generally useful simplification. Prevalence of people with out-of-ordinary combinations of genetic and hormonal developmental factors strong enough to get into the intersex category is so low that it's normally perfectly sufficient point of view. That does not mean we should dismiss people with these minority genetic/hormonal makeups.

Refusal to respect another person's body/personality mismatch and insistence on calling them something they do not identify with is hostile and petty.