Will Smith goes on stage at the Oscars and hits Chris Rock then verbally threatens him from his seat

I don't care about celebrities I just find it bizarre that people get so wrapped up the lives of these vacuous ego maniacs. I can see being a fan of a famous personality but this hero worship stupidity baffles me. They know every detail about their chosen object of their devotion and talk about them as if they a member of their family.
What's up with that?
i think you have the cart before the horse - no one comes into acting as a celebrity - there are maybe a tiny handful who start as pre-teen disney stars, but most have 'earned their stripes' working in anonymity then got a lucky break somewhere along the way
it's the industry that creates the ego maniac - publicists hype their shows and the public gloms onto to someone and then the publicists create celebrity from that
same with pro athletes, same with music stars, et al