If the OpenAI-NP board sees such existential risk from a change in leadership of OpenAI-P, how can they in good faith eschew control of it? By removing themselves from control, they would see the exact same risk anyhow. Elon could make a tender offer for the private for-profit entity that its board would be bound to accept in its fiduciary duty to shareholders. Plus, they would have to make the case that both Elon is specifically bad AND that he's so bad that it's not worth having $57B more to deploy for their AI goals. What's more, you would have to consider whether or not preventing Elon from controlling OpenAI even prevents whatever risk you see from Elon as he is already building xAI in parallel.
> IDK, Musk's offer is apparently for the nonprofit, not for a partial interest in the not-yet-extant for-profit subsidiary.
You can't buy a non-profit. It's their assets he's trying to buy. If OpenAI-NP values their OpenAI-P claims at $40B then that's what Elon would own according to their own beliefs.