Define woman in a way that includes both butch cis women and pre-hrt trans women, and isn’t tautological

Then likely youre not talking about the same thing anymore. Usually we talk about 'men' and 'women', and assume it makes up >90% of the population. Anyone else can simply pick whichever they feel like, can't they? So if you're pre-hrt trans, what is stopping you from just calling yourself a woman? Isnt that the whole point?

> includes [...] trans women

That's the very issue people who refuse to define women have: it's very difficult to define "women" if it has to include some men.

Otherwise it's very simple to define.