User blog comment:Kaestal/anyone else think that The Darkness is a disappointing villain?/@comment-3045936-20151223173941/@comment-3423279-20151224055940

It hasn't been about family for awhile now, ever since Dean and Sam abandoned their brother Adam in the cage and are fine with that. They also have killed so many possesed humans that had families of their own, think about that.

The Brothers may of once been heroes but now look at them, Dean complained that he couldn't kill a soulless human and when Sam reminded him that they need to try and save him as well, with Dean just scoffing at that.

To reiterate my sealing Hell point, all it would take was one person dying and billions would be freed from the most direct threat to humanity but Dean refused to lose his brother, screw those 7 billion other humans, and in order to save his brother he had him tricked and possesed.