Diversity strengthens a community because everyone in it can learn something. For an example, each culture is taught and brought up a different way. The things they've learned may be different from the things that you were taught. Diversity can teach you to appreciate other cultures and how deal with new experiences when you go to different places. When a community can be accepting and understanding it actually makes the community better.
Someone subject to intrapersonal conflict is someone experiencing conflict within themselves.Thus, a person experiencing intrapersonal conflict might have trouble establishing healthy and functional relationships due to lack of peace with themselves.