Although Mr. Musk acknowledged that an extended boycott could bankrupt X, he suggested that the public would blame the brands rather than him for its collapse.
Alongside Prime Minister Benjamin Netanyahu of Israel, Mr. Musk toured an Israeli village where dozens of people were killed in the Hamas-led Oct. 7 attacks.
Internal documents show companies like Airbnb, Coca-Cola and Microsoft have halted ads, or may do so, after Elon Musk’s endorsement of an antisemitic conspiracy theory.