purrpurr:
"The jw's cite abstaining from blood along with other cherry picked commandments."
Actually, the issue of blood comes from the account of God dictating a commandment to Noah. That preceded the Hebrew covenant and presumably would apply to everyone.
More relevant to Christians would be the words of the apostle Paul that commands all Christians to abstain from blood:
19 “It is my judgment, therefore, that we should not make it difficult for the Gentiles who are turning to God. 20 Instead we should write to them, telling them to abstain from food polluted by idols, from sexual immorality, from the meat of strangled animals and from blood. 21 For the law of Moses has been preached in every city from the earliest times and is read in the synagogues on every Sabbath.” Acts 15:19-21 New International Version
In general they do cherry pick Old Testament laws to their convenience like many fundamentalist Christians who condemn gays based on scriptures but ignore other scriptures like the ones found in Deuteronomy 22:13-29.
If JWs were to follow all of the Old Testament civil laws they would be Theonomists who believe in the creation of a theocratic state bound by Old Testament law (except for "ritual" laws). These people have a major influence on (U.S.) Republican leaders even though they are a small percentage of our population.