I had a best friend who suffered from classic symptoms of BPD. She truly suffered. It is, imo, a condition of disordered boundaries caused by early and repeated severe boundary violations.
In my experience, there are two extraordinarily sad things about the condition.
First, the DSM description makes the person wrong. I worked in community mental health, I've seen firsthand how the label makes the sufferer an enemy and encourages, not healthy and compassionate self-shielding against the behaviors that come from a place of deep needs and not knowing how to get them met, but the use of armor and even weapons of defense against the person. The titles the OP listed are cultural examples of this.
Second, in my personal experience, it is a condition that hurts the person as well as those they want to be close to. They often need and yet reject. They often cannot accept what they want and is freely offered, and often unwittingly try to take what is not offered, or cannot stop themselves. As I said, it is a disorder of boundaries. People with BPD are often wonderfully empathetic, intelligent, warm, funny, and giving. But the boundaries and social norms seem to be staggered so that they and those who love them have to navigate hidden minefields to love and be loved, to accept and be accepted. It is heartbreaking and exhausting for all parties. It's like the toxicity that was foisted upon them in their early years is a hyperbolic imitation of the very worst long-acting, time-released psychiatric med.
Psychiatry and psychology could do so much to change the continuing victimization and stigmatization of folks with these issues by changing the damn label and effectively treating the PTSD that caused it and stop blaming them. There are good practitioners out there trying to effect such changes, and those in control of the DSM reject all suggestions that would benefit rather than continually re-victimize the recipients of the label.
It is all so goddamn sad.
The end of the story with my friend is that I had to ask her to move out because I couldn't tolerate the boundary violations any longer. We lived together three different times, and each time was worse. I do not claim to have been perfect, but she knew the reasons, and she just couldn't stop herself. I miss the shit out of her humor, her compassion for those who suffer, her insights and intellect, her advice, and the sharing of her amazing talents. But if I let her back in, she takes too much, immediately. I blame those who hurt her. Through her, they hurt me too, and kept us both from the best in our relationship that we each needed, an ensured the potential could never be met, nor her abundant potential either.