Why Would God be Angry with His People?

I would rather that the reader fills in the answer to this question, because in pointing out the reasons, it sounds like I am offering criticism of the Jews. Of course the Gentiles face the same judgment as the Jews. Whether the Jews have had more "light" (thus they should have less darkness) is a question you must consider. God's Word has told us, repeatedly, what it is that makes Him angry. The specific incidents that caused God to spell out the reason for His anger simply serve to point us to the nature of the underlying sin.