We are Jews by birth. We are not "non-Jewish sinners."
References for Galatians 2:15
We know that no one is made right with God by obeying the law. It is by believing in Jesus Christ. So we too have put our faith in Christ Jesus. That is so we can be made right with God by believing in Christ, not by obeying the law. No one can be made right with God by obeying the law.
We are trying to be made right with God through Christ. But it is clear that we are sinners. So does that mean that Christ causes us to sin? Certainly not!
Suppose I build again what I had destroyed. Then I prove that I break the Law.
Because of the law, I died as far as the law is concerned. I died so that I might live for God.
I have been crucified with Christ. I don't live any longer. Christ lives in me. My faith in the Son of God helps me to live my life in my body. He loved me. He gave himself for me.
I do not get rid of the grace of God. What if a person could become right with God by obeying the law? Then Christ died for nothing!