For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some ‘organic element’ since I couldn’t accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.
Questioning doesn’t mean you have to come to a different conclusion. I’m cis-het(ish) and don’t just take that for granted. I’ve thought about my gender identity and sexuality and done the introspection. I’m definitely more of a gender abolitionist, so I don’t necessarily follow the loosely ascribed gender traits consistently, but I’m not trans. Questioning and defying social norms does not make one not cis. And that government comment is weird. Society assigns them to us. The government just writes it down.