I'm a very legalistic person in both Biblical terms and human laws. If you break the law you are subject to the penalties thereof. The penalty for sin is death. God has every right to demand justice for the injustice done against Him and if He asks His people to exact this justice than so it shall be. I have never had a problem rationalizing this issue. It makes you really take every moment as a gift because truly He could strike any of us sinners down at any moment and He'd be right in doing so.
God gave the world Jesus as a means to escape this. Jesus is (in modern legal terms) AR (Accelerated Rehabilitation). You accept Jesus and you can forgo the penalties for breaking that law because you accepted God's love. Or you can be that guy in every courtroom who thinks he can plead his case before the jury and that guy gets shafted with maximum sentencing.
Good post that pretty much answers your first post.