Complicated answer, see Rome started out as a "Christian" church. as time went on heresies and false teachings crept into the doctrines of Rome.
For example, the pope claiming to be the vicar of Christ, the priest and popes alike possess the power to forgive sins, Marian worship, idolatry ,
Changing the 10 commandments,the doctrine of Transubstantiation, indulgences, purgatory, the doctrine of works and faith for salvation, infallibility of the pope. sigh.... i can keep going but u get the point .(besides other mystical forms of worship)
Of course during the Protestant reformation, rose up the Jesuits, which many conspiracy folks, including myself, believe they are the true power brokers of the Vatican and the Freemason lodges. Of course, i do believe that the Jesuits are crypto jews, meaning they are really jews pretending to be Catholics.( the current pope is a Jesuit)
For the sake brevity, basically the worship of mary and baby jesus, is just the pagan version of Isis and Osiris. the RCC is basically the ancient mysteries/paganism that has been Christianize for the masses. So it explains them bowing down to this "jesus"which has long hair like a women, is white and look effiminate all things that bible do not say about Jesus( never mind the fact the its idolatry)
The Jesus the Pope bows down to, is Osiris, Apollo, tamuz, or the christ. basically the antichrist, which is why i say the pope is the false prophet. He looks like lamb ( aka christian is appearance) but it speaks its like a dragon(aka the devil)
Some of the things the popes of said since the 2nd Vatican counsil in the 60s are what we would call globalist, one world religion rhetoric, including using language that is found in New Age books or theosophy such as people of Good will,and the such.