[C. Edmund Wright]

Proving that the Catholic faith is true, does not make Protestants “heathens worse than animists.”

You are naive, or willfully ignorant, if you don't see through this.

[vladimir998]

“You are naive, or willfully ignorant, if you don’t see through this.”

No, the exact opposite. Only someone who wishes to pretend or who is too dense to see that the two things are in fact different would come to believe that the existence of one true Church means other believers are not actual believers.