I’d literally fucking hire someone to wipe these people off the planet for doing this. No one is going to rationally negotiate with these people.
If you want to stage a coup, like realistically, gather the necessary capital and attempt a purchase of shares. There’s a growing trend of owners of companies cashing out and selling the company to employee held trusts. This is rife with risk, and conflicts of interest too, but there’s actually legitimate ways of doing this, not holding people hostage. I remember a boss of mine from several years ago walking someone out, and afterwards being like that fucking sucks, I liked that guy, now we are in trouble, and he’s going to be very hard to replace. But nobody threatens me. This story reminds me of that.