Not exactly what he said. That Pachamama ain't my idea of god.
If Christ is unnecessary for salvation
Stop right there. His blood is the only Sacrifice that blots out evil. His sacrifice was necessary. But God has Commands that weed out the people who are evil and will not obey Him. This obedience is crucial and they can only be achieved through our belief and love of Jesus. If you do not love Jesus, the Commandments are a burden and you will eventually fail.
What about Works without Faith in Christ?