Segregation and mistreated are connected because

Segregation and mistreated are connected because being segregated is being mistreated. Segregation should have never happened!

Segregation is a form of discrimination (e.g racism, homophobia, transphobia, ect.) which of course are all forms of mistreatment. Segregation in particular is racist because it separates people and gives them different qualities of life in certain cultures according to the colour of their skin.  

she was trying to use   reliable narrator.

third person

explanation:

note the usage of names and pronouns, "james" & "the old man". this alone can confirm it as third person, as first person uses "i" and the like, while second person uses "you" and the like.

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