I have used cognitive thought therapy to get past a lot of negative thinking in my head just to get by my daily dealings with people. there are many positive aspects of not having much emotion. But I do still have much difficulty dealing with people and there drama.
to be honest, being schizoid does not equal a need or desire to be alone. Isolation is just a symptom of schizoid. Relationships are just emotionally complicated to me. Hell I can't even decide on what to eat when I'm hungry cause I have no preference for anything. the decision to eat something is total based on convenience for that task at that time.
Eating is just a task, something I have to do sometimes. till the next day, then repeat.

As for family. I think everybody everywhere has issues.