Thank you!
I hate these “gotcha” responses like the “everyone is female” thing.
Of the many MANY ways that “biological sex” can be determined (phenotype, hormone, etc) the ONLY one that exists at the time of conception when we’re not even talking embryo stage yet because there’s only one fertilized cell (or two if you want until mitosis begins) is chromosomal sex.
“But we’re all female at first” isn’t going to hold up in court, and it’s NOT going to save trans lives. We need to do better.
I want to be clear that I disagree with the EO; it’s not well written, has holes, and (most importantly) is ethically abhorrent. Your first paragraph gives many examples, good job.
But accurate understanding is crucial to effective resistance.
“Sex at time of conception” can ONLY be interpreted as chromosomal sex, as there is no other means of determining sex at that time of development.
The EO doesn’t concern itself with which gametes a person ACTUALLY produces, only which ones they WOULD produce based on the zygote’s (chromosomal) sex.