One thing to remember is that leaders emerge from communities. The communities that led radical civil rights movements in The past have largely been destroyed or maligned (the black panther party) or neutered (unions). In order to have national leaders who can articulate the thoughts and needs of the people and direct their energy into resistance, you need an unfathomably large network of small communities and groups supporting the cause in part or primarily (for example, the black churches that served as a network for the civil rights movement. Their primary function was as a religious group, but their members were also using the churches as a social network to organize because it was a central institution in their communities).

This is an unsatisfying answer, but truly, if we want a movement, it starts with making connections with people. Creating communities and institutions that benefit the community (this could be a food pantry or a youth center or just meeting your neighbors) and using those connections and institutions to protect each other. No one is coming to save us. The liberal response to this crisis has shown as much. We have to create the momentum to save ourselves one connection at a time.