No, we don't get to make up our own definitions. And that includes making up definitions of words which are quite obviously at variance with how they are used by the vast majority of speakers of the language. Even if they're "standard". (I still think there is a misunderstanding there and I think Emma Hilton addressed it, but I don't want to second-guess.)
As I've said before, definitions and usages change to reflect new knowledge. At one point "sex" and "gender" were seen as synonymous - which many still insist on doing. Are you going to argue that should still be the case?
Maybe you could tweet the question to Hilton - as one female, erstwhile or not
Surely would like to see her defend that definition to a "jury of her peers". Surely would like to see your citations of it in various reputable journals and by reputable biologists. You might consider the citations that Wikipedia provides in their articles which endorse those same biological definitions:
Female (symbol: ♀) is the sex of an organism that produces the large non-motile ova (egg cells), the type of gamete (sex cell) that fuses with the male gamete during sexual reproduction.[2][3][4]
https://en.wikipedia.org/wiki/Female
I had attempted to get one of Hilton's partners in crime, Colin Wright, to defend that definition but, as they say, the silence was deafening:
https://www.realityslaststand.com/p/sex-is-not-a-spectrum/comment/6213355
I didn't mind digging out an old letter from the uni to prove I had been awarded a PhD in order to have the title Dr on my passport, but I'm damned if I'm going to go looking for evidence that I once ovulated in order to be recorded as female on the bloody thing.
Yeah, I'm kind of "offended" that I'm not still seen as a teenager ...
But, hearkening back to another of your recent comments on M & F on passports and the like, maybe we need to be replacing those terms with karyotypes and genitalia? Maybe specify that there is one set of toilets & change rooms for the vagina-havers, and another set for the penis-havers - and reasonable facsimiles thereof? That we should specify that for women's sports, no XY need apply?
Kind of the crux of Griffiths argument: the biological definitions for the sexes are the RONG tools for the social gatekeeping jobs it's being pressed into doing.
You might consider an old Guardian article - before it got captured by the Woke:
The [monkey] trap “consists of a hollowed-out coconut, chained to a stake. The coconut has some rice inside which can be grabbed through a small hole”. The monkey’s hand fits through the hole, but his clenched fist can’t fit back out. “The monkey is suddenly trapped.” But not by anything physical. He’s trapped by an idea, unable to see that a principle that served him well – “when you see rice, hold on tight!” – has become lethal. I’m not the first to note what a great metaphor this is for our paralysis in the face of climate change: we’re so rigidly attached to a certain notion of progress that we can’t let go when it turns against us. “The difficulty,” as Keynes put it, “lies not in the new ideas, but in escaping from the old ones.”
https://www.theguardian.com/lifeandstyle/2014/nov/14/how-to-avoid-monkey-trap-oliver-burkeman
Also, have you seen the tables of descriptions of DSD conditions that classify them according to which sex they affect? Since many of these people are probably infertile, how does that square with your pet definition?
No, I'm sorry I must have missed them ...
Certainly don't know the details, but, offhand, maybe they should be classified according to the karyotype they affect?
Think trying to shoehorn them into either male or female is part of the problem .
Most journals and research I'm familiar with are entirely comfortable with the usage of male and female that is essentially based on presence or absence of an SRY gene. We talk about infertile males and infertile females all the time. We don't suddenly stop calling them male and female. Like freemartins. A female twin of a male calf. (My God, I'm glad that one doesn't occur in human medicine, given the frequency of mixed-sex twinning in our own species.) I simply have no other language to describe the condition.
Then I think you're going to have to convince Wikipedia, Lexico, Google/OED, the Journals of Theoretical Biology and Molecular Human Reproduction and many others to retract their definitions. Because, by those definitions, "infertile females" is an oxymoron, a contradiction in terms.