In a recent private meeting with fellow billionaires, tech tycoon Elon Musk appeared to endorse the far-right Great Replacement Theory as an explanation for why he is backing former President Donald Trump, reported The Daily Beast on Monday. The Great Replacement Theory holds that nonwhite people are being imported from abroad to deliberately change the demographics and political nature of the country. It has been the basis for a number of domestic extremists, including the racist gunman who carried out a mass shooting at a supermarket in a Black neighborhood in Buffalo two years ago. Some Rep…