What is someone’s “rightful share” of access to the world’s collected means of production? An equal one. No one wants to be anyone else’s slave or subordinate either in name or practice. Everyone has the right to not be anyone else’s slave. This is something that every human can understand that every other human might reasonably want. If we are to have a peaceful society, we must accept a foundation for it on enduringly and truly equal access to political and economic power. Any other arrangement justifies war.