Case law is very much law. Judges are not supposed to invent law from whole cloth, sure, but they are supposed to make law in a very specific and important sense: by interpreting law (including constitutional law) when its meaning isn't clear. The fact that some judges abuse this to set policy does not mean that judges shouldn't make law -- it only means that some judges don't have the right stuff to be judges. But judge-made law is a thing, and a real and legitimate thing. Downvoting this won't make it not so. Please acquaint yourselves with English and American jurisprudence, law, and constitutions.