I think there are too many versions of the Bible to spend too much time debating exact points. The English Language Bibles you'll find today have been translated and retranslated from several languages, so there's going to be distortions. Also, the whole book is up for intrepretation, though the general gist of it is "be good to people."

Anyway, if you look at the history books or even the wolrd news, you usually find that any time people can separate themselves into "us" and "them" problems arise. We find all kinds of ways to do it too.