You need to try to work out whether you think you are talking about what is or what should be.
Because in the real world, the one that is, you don't get to avoid the consequences of your actions by just saying you don't agree to subject to the law. No matter how much you redefine the phrase common law, it simply doesn't have the effect that you seem to think it does.
Try it and see.
No matter how anyone defines anything, what counts is what works. Again, the three links to what works:
http://www.broadmind.org/http://www.unkommonlaw.co.uk/http://www.myprivateaudio.com/Karl-Lentz.html