This! The right has been so good at giving its constituents a role — something to do — beyond voting. If the left (or whatever is the opposition to Trumpism) wants to compete, it needs to be participatory — ie, it needs to create opportunities for action in both the digital and physical worlds.
what's interesting about this is that it serves the same purpose as trump's rallies — energizing potential supporters and interested people, creating a positive vibe that builds an affective relationship — but is so much more democratic in that it is participatory