You say this yet most people fail to live up to a fraction of the morality that the Bible teaches. Even taking away things like abortion and homosexuality which can be debated, most people still don’t even come close to keeping basic rules in the Bible that everyone can agree is beneficial.
Actually this is not correct. Our current democracy and most others are based on British bicameral legislatures, which were based on the Roman senate which certain was not Biblical in terms of being based on the word of God. The Bible recorded the existing Roman government, but it was not the law or formula of God. God’s structure was face to face conversation and only 1 rule in the garden of Eden. When we couldn’t abide by that, he tried many times to bring us back to relationship with…
…rather than a formal governmental structure outside of him. When we looked around and saw other pagan people’s having Judges, God gave us Judges, same for Kings, then prophets. We don’t have a good track record of being satisfied by what we ask for. Meanwhile God never intended for anyone to reign over us but him. WE designed that mess, not God. This is where “give unto Cesar what is Cesar’s” comes from in its philosophical base.