The richest man in the world, who also happens to be a U.S. defense contractor, is being criticized on social media on Sunday after questioning why people aren’t trying to assassinate Vice President Kamala Harris. Trump over the weekend was tackled by his own Secret Service after an individual was reportedly spotted hiding on the former president’s golf course behind a bush with an AK-47. Authorities say they fired at the man, who was later apprehended and is being questioned. A graphic designer posted a question, “Why they want to kill Donald Trump?” Elon Musk, who owns the social media compa…