Люди как люди is idiomatic, it is used to refer to people that do not stand out from others in any way, the ones that don't have anything extraordinary about them, broadly "normal" people. You can also think of it as "people who behave like people." There's a rather famous phrase that makes use of this idiom. Все люди как люди, а я королева. I think you can figure out what it means now without much problem, as well as answer your question.