Musk first posted an antisemitic tweet, which caused a minor scandal. Then, to atone for that, he traveled to Israel, met with Netanyahu, and had Twitter begin boosting pro-Israeli content.

Musk went from antisemite to Israel fan in the course of just a few days. This actually isn't so surprising, though. There are many people who are both antisemitic and pro-Israel (see basically every far-right party in Europe, for example).