I work in mental health so am exposed on a daily basis to people with mental illness. I can honestly say that in the 10 yrs I have been in the field, working with 100s clients with mental illness in addition to running groups with other agencies in mental health facilities, I have met 11 people with BPD, and two of them were men.
It’s a horrible disorder to have and to be on the receiving end of, no doubt, but I think your statistics on prevalence are off. It’s more likely that 1 in 7 women are not gf material, rather than having a significant mental illness like BDP. In fact the research shows that the prevalence rate is less than 6%. This is from the medial community, where peope are qualified to assess and make that diagnosis. SS is not a medical community.
Are you a qualified psychotherapist? What are your credentials?
Here's the thing 6% are DIAGNOSED
It's much more common in young women than any other category group. You also have those who show significant "traits" of BPD but not enough for a diagnosis, however many of these are just as bad.
On top of that you have those who fall into NPD, ASPD, HPD, you have codependent women, ACOA's, Bipolar, and ALL of these women are VERY sexually active. They get through a lot of men, a LOT.
Trust me when I say if you are active in the 18-30 dating age pool its NOT uncommon to find girls with these sort of issues.
I don't really care if it's only 5% (so ONLY 120 million of them) that doesn't mean it's something which should be ignored.
Take it from me who dated a DIAGNOSED borderline personality for almost 2 years, I HAVE seen her drive a young man to suicide by overdose, make false rape claims, overdose herself and I find her in the bath covered in her own vomit, coming home to cut wrists pouring with blood, being woken at all hours of the night because she's out of her head on drugs walking through the ghetto, getting fired from jobs, blackmailing her boss etc etc etc
It's not a null issue, if you know, you know and I really don't understand why people feel the need to minimize it or act like that's just "normal female behaviour" ive had countless women since and none can come even in the same area code as what these women can do to you.