The author seems extremely harsh and unfeeling toward his father. He, or any one of us, should try to imagine being treated like his father did -- on first discharge from hospital, no one to pick him up but just some money and clean clothes were dropped off at the hospital. His father must have felt too unwelcome to even go home, and he didn't ... he went to visit his brother. On second discharge from hospital, they…
Convinced that nameless people were trying to kill him, he slept
no more than an hour or two a night and started drinking after
five years of sobriety. When his suspicions grew to include his
immediate family, he became violent and threatened suicide. At
one point, he tried to jump out of the car as my mother was driving
down the highway on the way to the doctor’s office. On another day,
he poured motor oil over her windshield as she was pulling out of
the garage. More than once, he hit her. More than once, he
threatened to burn the house down.
The author also pointed out her father is a 250lb man who presumably is significantly physically stronger than her mother. So it's quite clear why they didn't want him going home. Further, in the emergency room In the emergency room, he grew belligerent, shoving a doctor and
nearly punching an orderly. That’s when he was injected with Haldol
and sent to PESS.
etc etc. And it isn't hard to see the author's torment at being forced to do this to her father.