There wouldn't be any "Christians" if it weren't for the catholic church.
After Jesus' death, his various followers argued back and forth as they shaped the religion, dropping books of the bible here and there, changing words here and there, until they pretty much kinda sorta agreed. Then, when the romans finally came around to christianity, they founded the roman catholic church, and that was the beginning of organized christianity.
It wasn't until the 1500s that the protestants began to break away, forming the religion that you now follow.
The first church to break away was the Lutheran church, which did not think that all catholics were idol worshipers, but rather that they were corrupt. Every Christian denominatin to this day, asider from the church of england, broke off from the Luthern church.
I have a good friend who believes as you do. She also believes all Catholics are doomed to hell. And I always ask her, "Do you think that everyone who followed the catholic church from roman times until the 1500s went to hell?"
She never has an answer.
Also, you can argue that the catholic's brand of worship is more pagan than yours, and you would be right, but your own brand of Christianity is also riddled with pagan-inspired accents.
No one knows for sure what day Jesus was born, and it likely wasn't even in December, since it is unlikely that the shepards would have been out in the fields in the middle of winter. So when the catholics wanted to convert the celts, who were all pagan, they choose an important celtic holiday, winter solstice, as Christ';s birthday, to make it easier for the celts to make the religious switch. THis was very, very common. Easter is around the same day as the pagan Spring Equinox.
Actually, that's how the whole saints thing got started. The celts has many gods and goddesses whom they wished to continue worshiping, so the church simply turned them into saints. In fact, the Irish were so attatched to their Goddess, Brigid, that if the church hadn't allowed them to continue worshiping her as a saint, they would probably all still be pagan to this day. The church even allowed them to keep her eternal fire burning, even though it was a very "heathen" ritual.
The above paragraph may just make you dislike catholics even more, but I am just trying to point of the roots of the faith you follow. At the time all this was going on, every Christian in the world was catholic.