Coming into this thread very late, but it appears I have it.
I agree labels can be misleading, and it is more about a dysfunctional relationship, rather than a mental disorder, condition, or syndrome, but for lack of a better label there you go.
I was hospitalised - sectioned - when I was 17, after I had some sort of breakdown.
My parents took me, and I was made to stay there for 2 - 3 weeks.
Memories are a bit fuzzy, due to the time elapsed, and the fact I was medicated out of my mind on prescription drugs.
After I went home, we had family therapy, and a psychiatrist decided I should have CBT. My parents decided this must mean that my behaviour must be the cause. Furthermore, the initial since rescinded diagnosis at the time was schizophrenia, and the newer research at the time had linked cannabis use to causing schizophrenia, so yet another ground for my parents to say I made myself sick.
From then on my parents insisted I had to behave in ways that they approved of, they vetted my friends, girlfriends, activities, and work.
If I showed any emotive reaction it was seen as my mental illness playing up, and I was made to believe that only by following my parents advice, and avoiding what they did not approve of could I avoid further instances of mental illness including possible hospital trips.
I had a sense that my reality was skewed when I moved interstate with my now ex wife, then girlfriend.
Being so far away from my family and not having them micromanage my life, I could see that their insistence on running my life for me was not healthy or appropriate.
Unfortunately however the seeds had been sown, and I had PTSD, anxiety and depression dog me, though they (and my ASD) had not been diagnosed at that time.
Fast forward to today, and I have been diagnosed with ASD 4 weeks ago.
I now realise that the relationship with my family reeks of Stockholm Syndrome, and it is only because I have had minimum contact with my family that I can see the problem for what it is.
I was always scared that if I didn't toe the line, do what my parents said, and subsume my individuality, that I would be at risk of mental health problems and hospitalisation (anyone who has been to a psyche ward and been traumatised by the experience will do anything to stay away in future).
To complicate matters my family are strict Roman Catholic, so even my rebellious lack of faith was a point of contention.
Anyway, Stockholm Syndrome is a real thing and the fact that 23 years after my breakdown I still cringe at the thought of interacting with my own family proves it is not just some BS thing.