We put Paul in the Bible and studied his teaching a thousand years before your heretical cult was hatched.
Ahhh, the ubiquitous "we". I see nothing that links Scripture to belonging to some distinct group of men. Paul is the one who is was called by Christ and became the most prolific writer to the new church. He wrote directly about those at Rome, and aptly placed them in the right place. Paul's ministry ws to the Gentiles, whereas your claim to Peter defies the logic of his calling to preach to the Jews.
My faith is in Christ, not in some group of men in fancy costumes, claiming to be the ones called as leaders of some group. I do not belong to a 'cult', but I do see any religious structure based on a designated hierarchy making claims of infallibility as a classic cult. The age of the constituency doesn't matter, it is the content that completes the description. Therefore, it is reasonable to presume the Roman Catholic religion is also the largest cult of personality.
Romans 11: ... 13 I am talking to you Gentiles. Inasmuch as I am the apostle to the Gentiles, I take pride in my ministry 14 in the hope that I may somehow arouse my own people to envy and save some of them. 15 For if their rejection brought reconciliation to the world, what will their acceptance be but life from the dead? 16 If the part of the dough offered as firstfruits is holy, then the whole batch is holy; if the root is holy, so are the branches.
17 If some of the branches have been broken off, and you, though a wild olive shoot, have been grafted in among the others and now share in the nourishing sap from the olive root, 18 do not consider yourself to be superior to those other branches. If you do, consider this: You do not support the root, but the root supports you. 19 You will say then, “Branches were broken off so that I could be grafted in.” 20 Granted. But they were broken off because of unbelief, and you stand by faith. Do not be arrogant, but tremble. 21 For if God did not spare the natural branches, he will not spare you either.