I cannot find a single thing about him that’s likable. His ideas are all fucking stupid, and he only got to where he is now through rampant exploitation, disregard for safety in his factories, and stealing the “founder” title from every company he bought. He literally just bought his way to the top, and for some reason people see him as a deity. He isn’t charismatic, like a cult leader, and he gives off the impression that he peaked in middle school. So what about him is so likable to people? I don’t get it, and I probably never will.
Tom Nicholas did a very good video that I think gets close to what people respond to - https://youtu.be/5OtKEetGy2Y - basically that millenials are a generation who were sold a miserable future their entire lives so anyone pitching a hopeful futurism gets a positive response. Add to that Abby Thorn's point that he codes himself as counter-culture (while actually being the opposite) and I think you're there.