I agree, the law is good according to Scripture. To love the Lord your God with all of your heart, soul, strength, and mind, and to love you neighbor as yourself is a summary of the 10 commandments (first four commandments is our duty to God, second six commandments is our duty to our fellow man). The law has a purpose for believers and unbelievers alike. As Christians, we grow in personal holiness through the Spirit, conforming to the moral law of God. However, we are not bound to the moral law as a system for salvation. What do you mean that we are bound to the law? Protestant believe that we must put to death the deeds of the flesh through the Spirit. Nobody is proclaiming antinomianism. Your answer to being bound to the law is the difference between a false gospel and the gospel of God which transforms a sinner to the image of Christ.
Justified by Faith
We ourselves are Jews by birth and not Gentile sinners; yet we know that a person is not justified by works of the law but through faith in Jesus Christ, so we also have believed in Christ Jesus, in order to be justified by faith in Christ and not by works of the law, because by works of the law no one will be justified.
But if, in our endeavor to be justified in Christ, we too were found to be sinners, is Christ then a servant of sin? Certainly not! For if I rebuild what I tore down, I prove myself to be a transgressor. For through the law I died to the law, so that I might live to God. I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me. I do not nullify the grace of God, for if righteousness were through the law, then Christ died for no purpose.
Paul
In step with the OP, maybe Catholics can learn the gospel of God from Protestants? The gospel needs to be clearly understood and received by all Christians (Catholics, Protestants, Orthodox, Anglicans, etc).