“The Catholic hermeneutics do not take away from the Scripture anything it contains...”
Would that it was true! But Catholic hermeneutics add Purgatory, and take away the sufficiency of Christ’s sacrifice. It turns “have been made perfect forever” (Heb 10) into ‘forgiven for pre-baptismal sins, but needing punishment to cleanse from those that follow’.
It turns what God has done into what the ‘Christian’ will yet do.
Purgatory, penances, priests, indulgences, the Pope - all contrary to scripture, but safely ignored since scripture has been neutered. If you cannot read scripture for yourself and know what it means, then the church has no constraint.
But you at best object to traditional things that are outside of the historical scope of the scripture, and at worst, like here, object to imaginary doctrines.
It is thanks to the one sacrifice of Christ that people are made perfect forever, through the sacraments of the Church, penance (one of the frequently repeated calls of the New Testament) and purgatorial cleansing.
Thaty you interpret some verses differently than I do is granted. But nothing that the Church reveals to us contradicts the Scripture properly understood: both the Scripture and the magisterial teaching have the same source. “The house divided against itself cannot stand”. The house of Peter stands.