(Note: I follow the theologians William Orr of Pittsburgh Theological Seminary and N.T. Wright of St. Andrews in this article, the song quoted above is "Same Love" written by Macklemore and Ryan Lewis)
*Update: I have changed my mind about this; I now believe this issue is as others have said, the "presenting issue;" mercilessness instead, being the depth of God's visitation on our willful blindness. As we see throughout the Bible, God's visitation on our sin is suitable to the crime, "tit for tat," thus, women and men are first handed over by God to blindness toward one another but God's "betrayal" of mankind does not end there. The miry pit is goes even deeper. As another scholar humorously puts it, "the problem is fatal," but he continues, in the Lord Jesus our savior, "not serious" because it is order that God's justice, i.e., God's righting the wrong, may be revealed. Our betrayal by God to our enemies is simply preface to the coming of the our friend and savior, and God's glory. And as we see in our day, those who were once sunk deep in the depths now lead the way into the kingdom of God, Rosaria Butterfield and Becket Cook being two notable examples.