The wrath of God is real. It is not something to trifle with or make light of. God is angry over man’s sin. Not until we understand just how awful sin is, we will never understand God’s righteous indignation.
I am a Christian in part because of that wrath. Oddly enough, many non-believers use the wrath of God as a supposed reason to show that God does not exist. In fact, without wrath we would wonder at how sin could be so bad without the expression of his wrath.