I don't think he has the shittiest possible life. Someone trapped in an abusive relationship, suffering from addictions, mental health problems and with financial problems probably has a worse life than the richest man in the world
Also, Elon, Trump and Putin may be the most hated people by amount of people who hate them, but I wonder where they would fall on "proportion of people who know about them who hate them". If a thousand people hate me, I've messed up badly. If a thousand people hate someone that everyone knows, like David Attenborough, that's doing pretty good