How do you fix this pronoun agreement.

Question

The first theme that the author demonstrates is to not let people with a disability feel abnormal, but for them to use the abilities that they have to help them build their self-confidence.

Answer 1

I don't see a problem with pronoun/antecedent agreement here.

Pronouns: them, they, them, their
All these pronouns are referring to "people" which is plural, as are the pronouns.

http://grammar.ccc.commnet.edu/grammar/pronouns.htm
See #2.