Quite aside from the fact that things like mass famine and nationwide mob violence can affect people's emotions sometimes, and Mao had those and Elon didn't, I don't recall ever seeing portraits of Elon Musk being emblazoned all over San Francisco, or kids all coming home from school with Musk's Little Red Book.
Then it's maybe relevant to how people who didn't drink the koolaid felt about Mao when they were under China's Chiang? But not how they felt when they were under Mao himself.
I don't see any images in the search results you linked that seem to be photos of giant posters on San Francisco buildings. Possibly Google is serving me different results than it's serving you. Can you link to the specific ones you found?
