The Problem of Evil deals specifically with the paradox of an omnibenevolent god and the existence of evil in a world created by such. "Are people good or evil" isn't one for debate by anyone other than Philosophy 101 students, usually right before diving into qualia. Once more, with feeling: the science says otherwise. There are firm physiological underpinnings for altruism and fair behavior. There are mechanisms that explain their presence and there are biological structures responsible for them. That's fine, so long as you understand that your opinions are contraindicated with fact.Whether people are good or bad is a pretty complex question that has been debated for a long time by philosophers.
I find that there is not real objective answer to that question (maybe for now? ) and that opinion and ideology actually ARE an argument in this debate.
I'm personally of the opinion that humanity is nor good nor bad.