I'm just going to throw my two cents in regarding a handful of questions or remarks you've asked/made throughout the thread; this is specifically not a response to any of your interlocutors, so feel free to come back to this later or just ignore altogether.

In the interest of actually addressing your main question (as I see it,) I honestly don't know what, other than Mind, I would allow to shield against explicitly mind-altering powers, and just wouldn't allow it at my table any more than I'd allow someone to heal a stab wound with Matter.

The revised Storyteller's Handbook...