So you're gonna go with that, eh? You're gonna stick with the 'the Catholic Church has command of God's Spirit and she decides to whom God must give His Grace.' I think Jesus addressed that attitude to the Pharisees ... pray that you do not cause anyone, ANY ONE to stumble because of your haughty aires.
As a whole, the Protestant movement descends into apostasy, I believe, when it becomes virulently anti-Catholic, for that is a willful denial of Christ and the Holy Scripture that contradicts the basic tenets of Protestantism.
On the other hand, there is a concept of “invincible” ignorance, such as, for example, when someone brought up with the Protestant superstitions simply has nowhere to go to learn the Catholic faith. Imagine for example a child growing up in the 19c. Sweden, — how can we judge him if he ends up Lutheran?
This problem for you has been exacerbated by the ubiquity of the Internet, because today no “pastor” can keep the truth from his flock. People either remain Protestant because they knowingly reject Christ or at least reject the opportunity to learn. I cannot judge any individual, but God will. Time to convert, folks, and hurry.