I think it’s because he’s socialist. Americans have spent the past forty years (at least; probably longer, but I’m only 41) being told that socialism was evil and would inevitably lead to bread lines and mass death and corruption and like…perpetual rain or something. But now we’ve got a socialist running the biggest metropolitan area in the USA, and actually everyone there is doing great, while the Republican presidency is doing the mass death and corruption stuff. Americans are having their preconceptions rewritten in real time.