but a set of agreements that don’t have the power of law.
Rule of law is about having a culture of respect for law as a legitimate product of democratic institutions. If law is only real to you because it's "real" in the sense of boots, batons and assault rifles, the 'power' you are interested in is not the power of law.
Rule of law is about having a culture of respect for law as a legitimate product of democratic institutions
Law is a product of the government beating the shit out of people who break its rules. Since there's no world government, international law doesn't really exist.