"I do not wish to deny that the punishment of hell is in a meaningful sense self-inflicted," Robertson says,
yet his title says hell self-inflicted is a heresy.
The article is already looking incoherent. Have your cake and eat it too?
Hell "'not willed by God” [Von Balthasar] "...entails that something created falls outside the order of divine providence," says Robertson.
"The Lord ...is not willing that any should perish, but that all should come to repentance" says 2 Peter 3:9.
What Robertson makes of 2 Peter 3:9 he doesn't say.
If something is created, it must be caused by God, says Robertson (rightly).
Robertson denies sin is created by God.
What if sin is hell and hell is sin?
Hell self-inflicted is no heresy.
“There are only two kinds of people in the end: those who say to God, "Thy will be done," and those to whom God says, in the end, "Thy will be done." All that are in Hell, choose it. Without that self-choice there could be no Hell. No soul that seriously and constantly desires joy will ever miss it. Those who seek find. Those who knock it is opened.”
― C.S. Lewis, The Great Divorce
"Though our Lord often speaks of Hell as a sentence inflicted by a tribunal, He also says elsewhere that the judgment consists in the very fact that men prefer darkness to light, and that not He, but His “word,” judges men. We are therefore at liberty—since the two conceptions, in the long run, mean the same thing—to think of this bad man’s perdition not as a sentence imposed on him but as the mere fact of being what he is. The characteristic of lost souls is their rejection of everything that is not simply themselves."
― C. S. Lewis, The Problem of Pain