Edit: I should say, she's actually pretty on board with the rich/corporations fucking up the world, but she blames black people, poor people, immigrants, young people, for their problems instead of seeing the larger implications.
Maybe a specific episode of Chapo, Citations Needed, documentary, etc, whatever, she's what I would call a very conservative lib
You could get her into the Revolutions podcast. Duncan is pretty frustratingly lib so she'll feel right at home, but the podcast is somewhat popular in this community and I'm currently giving it a re-listen myself. She'll end up getting tidbits here and there about groups like the Diggers and multiple episodes about Marx.