Hated Without a Cause-Genesis 37

Are we born hating Christ? Why does this flesh have to be brought low at Christ's feet? How does the flesh strive against the Spirit? Why did Joseph's brothers hate him? Why doesn't God leave the decision to be saved up to the sinner? How is Joseph's coat of many colors picture of the Glory of God in Christ? Who are those who see that glory and how are they able to see it? How was the sun darkened when Christ died on the cross?