This part right here is gold!

Where Do Impotent Low Coping Personalities Come From?

Impotent personalities do not arise out of thin air. They are made or shaped as is any child’s personality. But how? We discovered in large part they are emotionally shaped or conditioned by a parent who has the opposite personality, what we call an omnipotent or high-coping personality style.

This line describes BM: 

"Accordingly, low-copers do not deal well with assuming responsibilities. They do not solve or even manage their own problems or life difficulties in effective ways. They are often in an uproar and become highly anxious when encountering something they need to handle and solve." 

This line describes both SSs: 

"Impotent personalities are arrogant, expedient, and relish dependency on others — protection, constant care, continual accommodation, and freedom from unpleasurable stresses of any description."

That said,  I feel as though I am a high coper raised by a high coper, so I don't think high copers necessarily create low coping children. Maybe high copers with enabling tendencies or anxious high copers (in that they can't wait for others to do things, so they do things on behalf of others) create low copers.