What you can see is the online-and-participatory ABDL cohort (as opposed to the total ABDL cohort) and yes, I agree they’re predominately male.
It would be interesting to know what the gender split truly is by being able to count non-participatory ABDL but that’s tough. They’re not online and they don’t participate 🤣
Since the best-bet theories as to how ABDL dispositions eventuate are not gendered, it's hard to see why there would NOT be a considerable CIS-female ABDL population.
I think the question is why don’t more females show up in online ABDL spaces?
The elephant-in-the-room answer is that it’s been the case online that they’re frequently hounded by hormone-addled males looking for sexual stimulation.
Having said that, I’ve found that this place is one of the most civilised ABDL places I’ve seen and is considerably more cerebral in flavour. I’d be inclined to believe that you’d be treated as you’d want to be treated here.
You may want to try DDlg sites which often have more women and also are still accepting of diapers. My Daddy and I found a great DDlg forum that also has a specific secure forum for diapers called Cushies Castle.