"Innate" means your born with it.
I know what it means. I also know what people usually mean by that. Stop being so picky on my words.
Like I said earlier, during your first few years of development, stress affects your brain structure. It can make you prone to depression, ADD, learning disabilities, memory problems... all of which affect the way you're treated throughout your life; it affects your environment.
What you said is
also environment that already affects you.
Some people aren't adversely affected by growing up in a stressful environment. They must have some kind of immunity or maybe they have people in their lives that compensate for the maltreatment or whatever is causing the stress.
There's no ''immunity'' to that. Everyone is affected. It's just that some people are more affected to that because of their temperamental sensitivity. But it's not a preposition for mental illness because they're also affected by positive influence and environment more than other people https://hsperson.com/research/published-articles/
And yeah if they have other caregivers that are regularly present in their lifes and they regularly see them and nurture them and they're good enough to them then that can ease the maltreatment or stress depending on circumstances.
It all actually depends on circumstances and nuances.
As far as therapy, talking about your problems has limited effectiveness. You need things that make you feel good about yourself, such as healthy relationships, a successful career, pleasure, accomplishments... But when you have psychological and emotional problems, those things can be elusive, which makes you feel lonely and hurts your self-esteem because you can't accomplish the things your want to.
Mostly people with childhood traumas can't do that. Because the relationship pattern they had in childhood with their primary caregiver(s) was perpetuated in their brains. They don't have at least emotional resources for seeking the good. It can slowly change in a long-term therapy where you can get something that those healthy people got in childhood and you didn't. When you internalize the good treatment you start to treat yourself good.
Someday, we'll be able to go to a doctor's office and have our brains manipulated to function more effectively. They'll be able to stimulate the parts of the brain responsible for pleasure. I look forward to that day.
No manipulation needs to be done because some of it is already possible in long-term therapy where the therapist is supportive and where they respond to client's emotional needs.
It's such an alienated way to think of the cure as some ''brain manipulation for us to function effectively'' because relationships influence us the most. And the cure is through relationship/attachment, but a safe one because it's performed by a professional. Of course, that doesn't exclude confronting client's psychological defenses and working on their issues on the basis of respect and full acceptance.