This is the most important question, IMO! ChatGPT says that employees and donors would have to show that they were defrauded (lied to), which IMO wouldn’t exactly be hard given the founding documents. But the real power falls to the government, both state (Delaware presumably…?) and federal. It mentions the IRS, but AFAIU the DoJ itself could easily bring litigation based on defrauding the government. Hell, maybe throw the SEC in there!
In a normal situation, the primary people with standing to prevent such a move would be the board members of the non-profit, which makes sense. Luckily for Sam, the employees helped kick out all the dissenters a long time ago.