Come along on a walking tour surveying San Francisco social movement history, analyzing the pith of systemic oppression, and introducing San Francisco's Big Idea solution to systemic social injustice.

The Big Idea, promulgated by 19th century newspaper editor and social philosopher, Henry George, holds that land values are part of "the commons," and as such ought to be, in whole, socialized.

What Trump owes Americans and the world is the annual value of the geography he claims as his own. Ditto for the rest of us. Today's tax march should call not only for disclosure of Trump's existing IRS history, but for legislation socializing land values in toto.