The title of this piece deeply disturbed me. Not only does solidarity exist, it is the reason that we, as a species have been successful. All of our progress has come from our ability to work together for the common good, and to pass on the knowledge gained to another generation. If we lose that, we may not survive. As Ricardo Flores Magon (the anarchist from Oaxaca who started the Mexican Revolution) put it: "Solidarity is the consciousness of the common interest, and the actions which follow from that consciousness."