Transgender people know exactly what sex they were born, and therefore how to respond to illness, and what type they are more likely to be prone to? Just don't get it.
It is not a petition to stop anyone being anything they like Fleurpepper. It is saying that when we speak of sex we should mean biological sex. That is settled at conception and no matter what else you may do to transition, that is immutable and unchangeable. It affects your responses to illness, the type of illnesses you are more prone to.
It has got absolutely nothing to do with gender or transitioning.
Not at all. Who am I to decide who others want to be, and how they want to live.
But gender reassignment is a protected characteristic, which allows people to be who they want to be. Why would you want women (or men) to lose their biological sex based protected characteristic?