There's not much else you can do at this time, it's up to her.

mrsconn23

Dear Prudence,

My best friend from college’s parents are QAnon conspiracy theorists. My friend was raised in a conservative Korean Christian family, but now they seem to be conflating QAnon conspiracies with their religion. We graduated a few years ago, but she lives at home and is helping her family out financially because of COVID. My friend is queer, but she’s not out to her family. They think she’s “just” a straight ally, but they think even being an ally means you’re going straight to hell. I’ve offered to let her stay with me, but her work is returning to in-person status soon, and I live in a neighboring state. How can I be there for her when she’s living with people who are living in a delusion?

—Conspiracy-Minded Parents

banana468

Be there for your friend.  Continue to be supportive.  That's all you can do if she's a grown adult. 

charlotte989875

Be there for her, but she’s an adult who knows her family and living situation far better than you do. It’s condescending to think you know better than she does about what she needs. 

short+sassy

The LW has done what they can to help their BFF who is in this toxic situation.  They should continue to be a listening ear and shoulder to cry on, which is an enormous amount of help even if it may not feel like it.  But, ultimately, it is the friend's choice on if/when/how they leave the situation.