Because some anti-trans people deliberately conflate sex (male/female) with gender (man/woman/nonbinary) for the express purpose of invalidating the identity of trans people.
That being said, the example in the OP looks more like either an innocent translation error or the dehumanising use of the word that the “manosphere” (incels and others celebrating misogyny) deploy. Probably the former tbh.
Because some anti-trans people deliberately conflate sex (male/female) with gender (man/woman/nonbinary) for the express purpose of invalidating the identity of trans people.
That being said, the example in the OP looks more like either an innocent translation error or the dehumanising use of the word that the “manosphere” (incels and others celebrating misogyny) deploy. Probably the former tbh.