I agree with you in most of your stated principals. Sadly however when you misuse the world "common law" and redefine it when in fact it is a lawful practice in law. Well I don't see how the results of such can be good.
"On the other hand we have the very common law of authoritarian states the author's criminal law, which is based on intervention."
Such is not law nor is it common law. It is sexist, bias and prejudice. It most certainly is not law. Common Law is actually the solution to such social problems. Common Law is a method or process. What people believe can be truth or a Ly. Common Law requires proof. If such thinking fly's the logical conditions in society will change to a condition of no law at all.
The following is a good description of Common Law.
"Unlike criminal law of act"
Thanks for your comment.
I was not referring to 'Common Law' I was just using common as an adjective, something that is very usual in authoritarian states which is the author's criminal law.