Paul didn't die for my sins.
Mat 5:17 "Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them.
Barnes on Eph 2:15:
The idea is, that the ceremonial law of the Jews, on which they so much prided themselves, was the cause of the hostility existing between them. That made them different people, and laid the foundation for the alienation which existed between them. They had different laws; different institutions; a different religion. The Jews looked upon themselves as the favorites of heaven, and as in possession of the knowledge of the only way of salvation; the Gentiles regarded their laws with contempt, and looked upon the unique institutions with scorn. When Christ came and abolished by his death their special ceremonial laws, of course the cause of this alienation ceased.
This does not refer to the “moral” law, which was not the cause of the alienation, and which was not abolished by the death of Christ, but to the laws commanding sacrifices, festivals, fasts, etc., which constituted the uniqueness of the Jewish system. These were the occasion of the enmity between the Jews and the Gentiles, and these were abolished by the great sacrifice which the Redeemer made; and of course when that was made, the purpose for which these laws were instituted was accomplished, and they ceased to be of value and to be binding.
Clarke on Col 2:14:
By the hand-writing of ordinances the apostle most evidently means the ceremonial law: this was against them, for they were bound to fulfill it; and it was contrary to them, as condemning them for their neglect and transgression of it. This law God himself has blotted out.
To say that Jesus is the "telos" of the law means he is the purpose of the law, the thing to which it points, its point, its final goal, its fruit.
Baker on Rom 10:4:
Does one wish to understand the goal, the meaning and substance, of the Old Testament law? Then study Christ. Is not the very purpose of the law the establishment of love? See Deu_6:5; Lev_19:18 (in that order); cf. Mat_22:37-39. Is not Christ the very embodiment of that love, both in his life and in his death? And is it not true that because of this love which caused him to suffer and die in his people's stead, there now is right standing with God for everyone who reposes his trust in the Savior? Is not this the very theme of Romans?
Nevertheless, I am agreeing with you and with Paul more than you think.
CCC 2010 Since the initiative belongs to God in the order of grace, no one can merit the initial grace of forgiveness and justification, at the beginning of conversion. Moved by the Holy Spirit and by charity, we can then merit for ourselves and for others the graces needed for our sanctification, for the increase of grace and charity, and for the attainment of eternal life. Even temporal goods like health and friendship can be merited in accordance with God's wisdom. These graces and goods are the object of Christian prayer. Prayer attends to the grace we need for meritorious actions.
CCC 2011 The charity of Christ is the source in us of all our merits before God. Grace, by uniting us to Christ in active love, ensures the supernatural quality of our acts and consequently their merit before God and before men. The saints have always had a lively awareness that their merits were pure grace.