Working against existing systems inherently causes friction, and the more fundamental or radical the change we are working for, the more intense the pushback. This pushback comes in many forms, from all sides—from within the systems of oppression because the work is threatening, and often even from within resistance movements because of horizontal hostility or activist perfectionism. In fact, sometimes to most vocal and intense criticism comes from those supposedly committed to liberation. Not to mention that it is extremely hard to sustain economically, given that systems change work is powered by people, and people need to eat.