They, as women, knew that they hadn’t a hope of being taken seriously.
In Charlotte's own words:
Adverse to personal publicity, we veiled our own names under those of Currer, Ellis, and Acton Bell; the ambiguous choice being dictated by a sort of conscientious scruple at assuming Christian names positively masculine, while we did not like to declare ourselves women – without at that time suspecting that our mode of writing and thinking was not what is called ‘feminine’ – we had a vague impression that authoresses are liable to be looked on with prejudice[.]”
I cant see any relevance in arguing whether 'Currer' or 'Ellis' were given names or not; if you looked hard enough you’d probably find one or two people with that name, but it’s beside the point as far as I can see.
Remember that all the children, Branwell included, had spent years inventing the vivid fantasy-worlds of Angria and Gondal in which they assumed the personas of dashing military men, dukes, duchesses, ladies, gentlemen….but that did NOT mean they had any confusion about their 'gender identity'. It’s called ‘imagination'.
Charlotte, Emily and Anne knew they were women - they'd had a lifetime of housekeeping, governessing and domestic drudgery from which Branwell was exempted by virtue of being a boy - and they damn well knew they'd be laughed out of any publisher’s office if they sent in a MS under their own names.
I'm a member of the Brontë Society, which used to be a reputable organisation, and bilge like this makes me furious.