Personality disorders have been treated with therapy in many cases. What is the main reason for a label: to get the right treatment. People will never be "normal", but they can live in and deal with society, something they would have failed with even 30 years ago.
Come on now, you can't really believe that someone who "just couldn’t let something go because it was wrong or incorrect and it bothered" them - would have failed to live in and deal with society 30 years ago.
For some definition of failure. Ever read a really old book - something from the 1800s? Ever listen to your old family stories? There are many variations of "Larry, he never leaves the farm". We have no idea what might be wrong with Larry, but it is clear there must have been a lot of people who failed to fit into society. We also know that are variations, in some cases Larry would leave the farm but only for specific and controlled situations because that is all he could handle.
Obvious she is getting out, but it is highly likely with some help she could function a lot better.
Actually, we are living through the peak of social penalization of non-conformity.
In days of old, there was an implicit high tolerance for low intelligence and reduced social ability, since communities ware small, lives were short and violent and strong family support was essential for survival. Nobody cared if Larry can befriend a stranger passing through the village, as long as he could work the fields and provide. Only comparatively rare conditions such as schizophrenia or severe autism would lead to ostracization - the proverbial village idiot.
The Larrys of today are many and can be marginalized for minor issues. A low achievement student can be removed from their class and left back, leading to a vicious cycle of depression and economic exclusion. A functional autist has major problems in the modern workplace and the dating scene, leading to hikikomori individuals.
So while the treatment options improved, the bar for what constitutes a well integrated, functioning adult raised even more, without diminishing the stigma for illness.
I'm sure that's true but I'm also sure that some portions of personality are mutable at will. I wonder sometimes whether diagnoses takes away the will to make changes.
It's kind of like poverty. Some portion is luck and some portion is due to behaviors that can be modified. Trying to solve the problem assuming that it's 100% one or the other doesn't work.
