God's Righteous Judgement

What is the problem with the view that God is loving and kind but not just? Are there degrees with holiness? What is 'progressive sanctification'? Can you be 99% holy? How is it that Infinite could take on finite? Do we need understanding to learn His commandments? How is an idol god a lot like the one who imagines it? Why did Christ submit Himself to the law? How is the Bible, the Word, a legal document of God? Why would men rather have a corrupt sacrifice than the sinless Christ? Why do they insist on blaspheming by saying Christ became sinful? Why is the legal term of imputation vital to understanding Christ as the Substitute for sinners? How do we see it's impossible for Christ to become sinful and been raised from the grave as righteous? Were we born into this world already forgiven?