Monday night’s “White Dudes for Harris” Zoom call, with some 90,000 registered to participate, was surely a landmark in political history. Nearly 200 years ago, when the Democratic Party was being formed to elect and re-elect President Jackson, the entire American electorate, with exceptions, such as Black New Englanders, property-owning Black New Yorkers, and New Jersey widows, was made up of “white dudes.”