Being famous and rich is not what got Trump in and the factors that got him in would be somewhat different for a liberal. And in the general factors that matter for a president, Zuck has about 0 of the ones that matter (charisma, likeability, relatability, toughness, outspokenness, bluster, comedy, incisiveness, a relatable or admirable background, etc).
He’s a privileged rich white kid on the spectrum, I give less-than-Bloomberg chances (same charisma, less experience and relatability).
Agree on the overall argument, but your assumption that Zuck is a “liberal” seems, on the face of it, pretty unfounded. He financed Republicans and effectively allowed Trump free reign on his platform, over and over.