There has and still is a mayor Critique of The RCC when it comes to Doctrine around The Pope and the leadership structure and also what is seen as The worship of Mary,you may also add the Statues that was remade from pagan gods into the saints of the church.The critique is large and it often comes from the rest of the Body of Christ(the church)

I will confront The question from The view of Sun god worship.Common knowledge that Change came with Constantine (not a controversial view of History)Suddenly  "Christian Holy days " match with pagan dates and Even more controversial The structure of pegan worship does match as well.

- The structure of the leadership in connection To the story of Nimrod 
- You see The round wafers in the sacrament and in the monstrance symbolise the sun (the sun was erected above the altars in the worship of Baal
- The wine turns into blod (drinking blood)not just a symbol
- The columns of St Peter's Cathedral in Rome have a sun-like image, and a wall has a golden sunburst image just as in the Babylonian temple

So much to say and has been said.Many books on this critique or just plain history books.

The question here is How does the RCC deal with  this problem.Are there any books ,sermons,teaching or maybe you can present the full answer below ,where The RCC deals with these questions, that is one question The strong connection with Pegan worship or the accusation of it ?