“I feel really sorry for Catholics”
Then you feel sorry Peter, Mark, John, Matthew, Luke, and the rest of the first Christians? They were all Catholic. And if you had lived before a German Monk named Luther, you would have also been a Catholic.
Deal with it partner,it’s fact.
For Catholics, everything revolves around Catholicism.
For Christians, everything revolves around Christ.
Not with a capital c they weren’t, they were part of the catholic (small c, as in universal) body of Christ as are all who have ever trusted in Christ alone. And there is no way Peter, Mark, John, Matthew, Luke, and the rest of the first Christians could possibly have been part of the RCC or any organized Catholic (Capital C, as in imposter) since there was none at the time.