“Deprived millions or even billions of the sacraments and the consolation of communion with the saints.”
Millions or billions gained eternal life and escaped hell. They gained the consolation of God and the inheritance of Christ.
Great trade.
Given that ALL of the historically Protestant countries of Europe have, for all intents and purposes, left Christianity altogether and embraced secular hedonism on their way to Islam, I think the devil is quite pleased with the bargain overall.
The Protestant triumphalists on FR never mention that. Sorrow and horror at the degree to which Protestantism has been replaced by open apostasy never makes a dent in their eagerness to condemn Catholics and Catholicism. Think about that.