First, I'm so sorry for your experience. I ask myself how reasonably educated adults can traumatize their children to that extent. I'm sure my parents contributed to the lifelong stuttering. They initially adored me, I was the charm on my mother's bracelet…until I became ‘imperfect’ at the age of 4 when everything changed. I was very aware of the withdrawal of affection. My father stooped proudly presenting my verbal poetry and classical music skills. They no longer valued me at all. Later, I believed that they allowed me to be molested as they were in the same room while a predator was feeling me-up while on his lap. All this and more destroyed my self esteem thus contributing to my lifelong stutter. No speech therapy although finances weren't an issue. I didn't even receive medical care. Children do react to abusive treatment by parents and this does accelerate childhood stuttering into lifelong stuttering. Still a mild-moderate lifelong stutterer. Now at 78f I've finally stopped all attempts at interventions and have just accepted this condition. I'm no longer chasing my personal elusive dream of total fluency. Truly, it is long past time for me.