At the mere mention that Elon Musk will allow Donald Trump to return to Twitter, celebs and companies are jumping ship.

Trump hasn’t even returned, and it’s not clear that he will – but the fact that he’s welcomed back is enough for many to say, “so long, Twitter.”

Of course, it’s not just Trump. Many people are skeptical about what Musk plans for the platform, given his right-leaning beliefs and love for causing chaos.

TV show creator Shonda Rhimes tweeted, “Not hanging around for whatever Elon has planned. Bye.”

Actor/producer Ken Olin tweeted, “I’m out of here.”

General Motors (GM), a competitor of Musk’s company Tesla, is taking a pause, explaining, “We are engaging with Twitter to understand the direction of the platform under their new ownership. As is the normal course of business with a significant change in a media platform, we have temporarily paused our paid advertising.”

The CEO of Fisker deleted his account after Musk’s bid to buy Twitter was accepted.

While Musk has promised advertisers that Twitter won’t become “a free-for-all hellscape, where anything can be said with no consequences,” many critics fear exactly that.