The wrath of God is never a very popular idea. It seems to me that the more biblical a doctrine is, the less the world likes it. The wrath of God against sinners (not just against sin!) is one such doctrine. Here is what Martyn Lloyd-Jones has to say about it:
The apostle’s whole argument is that we can never understand the love of God until we understand this doctrine. It is the way in which we measure the love of God…I suggest that we can never truly understand why it is that the Lord Jesus Christ, the eternal Son of God, had to come into this world unless we understand this doctrine of the wrath of God and the judgment of God…Why was it (Christ’s work, LK) essential to our salvation? Why did all that have to take place before we could be saved? I defy anyone to answer that question adequately without bringing in this doctrine of the judgment of God and of the wrath of God.