heresy (eg offering a scientific view that differs from dogma, like the fact that biology presents two genders)

I often find – and such appears to be the case here – that when people make these arguments that they either do not know the difference between sex and gender, or are feigning ignorance.

Sex is not binary, and the “anti-trans” folks pretend that it is. Intersex people exist.

Gender is not solely biological.

https://en.m.wikipedia.org/wiki/Gender