Luther and The Foundation of Protestantism

"Respondeo non ut Aristoteles: Cytharisando fit bonus cytharaedus, bene operando fit bonus, iuste faciendo fit iuste. Haec enim valent foro physico et mundo, sed non apud Deum. Nam coram Deo in hac nostra corrupta natura nemo fit iustus iuste agendo, sed iustus a Deo pronunciatus iusta facit et bene operando operatur."

Here is the part about Luther's justification bringing righteousness. But notice it is only after we have been declared righteous by God, we have done nothing ourselves. This needs to be seen as a direct assault against the Church's position that we are sacramentally imbued with an indeliable mark. Moreover, there is no change in the person via declaration, the change is "in alio ad caelum" or assumed in heaven. This needs to be seen as an assault on the Church's position that there is also a visible Church, not merely an invisible Church. Here we can see the foundation forming of Protestantism's complete individualism, lack of sacramental change, lack of salvific participation, and rejection of habitual virtues (i.e. virtues that are natural and not supernatural). Its a house of cards, you take down the bottom the whole thing collapses.