How does 2 Maccabees 12 undermine Purgatory?

In this episode, Dan Chapa and TurretinFan consider 2 Maccabees 12, which is one of the texts often cited in support of the Roman Catholic error of Purgatory. We consider the text itself, its usage in church history, and some reasons why it not only fails to support the error of Purgatory, it actually undermines it.