Do you know the history of the Catholic Church?
I know the history of Catholic Church well enough to know your post was devoid of Christian Charity.
We (Christians) are commanded, by the Son of God to “love one another”. That means exhibiting Christian Charity toward one another. If we, by our actions, cannot exhibit this, how can we witness to unbelievers?
Why would a pagan or athiest believe that God so loved the world, that he sent his only Son to die if his followers cannot exhibit even a modicum love for each other?