Is it "Unintentional Neglect" if "both" parents are diagnosed as Mentally Ill?

My Dad was Schizophrenic (on Thorazine and Stelazine (sp).

My Mom wasn't diagnosed until I was about 23, or so.
She was diagnosed as Depressed with some Paranoia.
Then, later on, she was diagnosed with Paranoid Schizo.

My parents never showed their emotions, except for their fighting with each other. If they didn't like something that I did, they would "alwas" send me to my room; sometimes for long periods of time. I found that "very" odd as a kid. I tried talking to them (both), about things in life, like "my feelings" on their fighting, or on things happening to me, and they just shut me out. We NEVER discussed any "feelings, or emotions, and how to deal with them, either together, with one parent, or both. Oh, I'm an only child, so all I had was my friends to talk to.
I know (now), that they did the best that they could, at the time. I told my Mom that when I was in my 40's and she told me that she never thought about it, that way.
Both of my parents have passed away, but I loved them, for who(m), they were regardless.