Either Catholicism is the original Christian faith (Ephesians 4:5 “One Lord, one faith, one baptism”), or it is not. There isn’t another option.
So as Catholics, we aren’t required to suspend any necessary implication to that we believe Catholicism is the same faith captured in the words of the New Testament.
One of those implications of Catholicism is that because Jesus is the Shepherd of His flock, the Catholic Church is His earthly fold for us His sheep. Other Christians are objectively outside the fold, which is where they do Not belong.
And the Lord instructs in Matthew 18 how we are authorized to treat sheep, who stubbornly resist entering or returning to the fold: “…let [them] be to thee as the heathen and publican,” verse 17. (The heathen are the pagans that’ve been mentioned already numerous times itt.)
And that doesn’t mean we treat them disrespectfully! In fact Catholicism believes we are to treat them with complete respect, and that means to me, at minimum, that we are to recognize, acknowledge, affirm, protect, and defend their basic, fundamental, natural, inborn, inherent, absolute, inalienable human rights.