Joi Ito wasn't at "some party" with Epstein. He raised money from him after Epstein was convicted for child sex trafficking. He also allowed Epstein to co-invest in his startups. He also visited his houses... During this time period Epstein continued to rape children (two new suits were just filed on Tuesday that state this).
Joi Ito has a deep relationship with a child sex trafficker, people are rightfully upset.