So he’s posting leaked, private materials that he doesn’t have rights to, and the materials are from a Zoom partner company that provides a critical integration for the company’s operations?
Obviously he’s going to get fired if he refuses to remove the Tweets. I’m surprised they even offered to let him stay if he removed them. You can’t have an employee actively leaking private materials from one of your key partner companies with which you’ve undoubtedly engaged in a lot of contracts.
This isn’t really a wrongful termination case. If you want to be a Twitter leaker of private company materials on sensitive topics, you can’t also expect to work for companies adjacent to those leaked materials.