What we do now bears little relationship to "a representative random sample of the population". We deliberately rule out everybody who has any relevant knowledg

What we do now bears little relationship to "a representative random sample of the population". We deliberately rule out everybody who has any relevant knowledge or preexisting opinions about anything related to the case or the legal system, thereby making the sample far from random. (I believe in Jury Nullification - meaning I think the jury has the responsibility to judge whether the law itself is unjust and if so refuse to convict under it - and I object on moral grounds to a fair number of existing laws. As a result of having these views, I have never been able to serve on a jury. I would only be able to serve if I lied to the judge about my beliefs.)