If my son were to disown me and never want to have anything to do with me again, I would be profoundly sad. There may be nothing that would make me sadder. But I certainly wouldn't want my son to suffer for the rest of this life, much less for all of eternity, just because he disowned me.
What if disowning you was equated with suffering for eternity?
Would you chain him up in his bedroom to keep him from getting away from you or would you let him go? Would you want to have to force him into not disowning you?