Why do Catholics believe they worship in the true Church?

Clearly by creating the Church with a particular structure and particular practices under the leadership of particular individuals with specific authority and responsibility it is Christ and Christ alone that has created this mindset in the Catholic faithful. There is no where else that they can appeal to the truth or receive what is necessary to ure eternal life. No church that has thrown Christ out of their worship both in corporeal presence and in focus of their worship can lay claim to anything but a marginal and accidental semblance of the truth that is held and protected in the Apostolic Churches for Christ gave His authority to no others. The gates of hell have not prevailed against His Church as the critics would proclaim but instead He is calling those home who are His and allowing all others to cry "Lord, Lord" as Christ acknowledges that He never knew them. Could it be that God allowed the tares to grow among the wheat for 1500 years and since has been preparing the harvest by separating them away to be burned bound in their bundles of denominationalism and independence? Sounds like the fruition of a parable to me.