What is the authors message?

I believe in the novel Thirteen Reasons Why, the authors message is, Do not outcast others just because they are different. When people treat Hannah like she is nothing, like she is insignificant, it makes her want to kill herself. We should all treat others as equals. No more and no less. If everybody treated others with respect and dignity, then there would be no suicidal thoughts or actions. Basically follow the golden rule. Treat others the way you want to be treated. We should all think about what it would be like to be that person before we cast them out and seclude ourselves from them. We need to be understanding and forgiving people.