Being raised Catholic by French/Irish parents, and attending a private Catholic school for years, I like to think I have a pretty good handle on their current beliefs, and I can assure you Mary is not worshiped as a Goddess. Important yes, but she is not considered more powerful then any other Saint.
Also I firmly believe the Catholic Church's rise was a response to vacuum left by the collapse of the Roman Empire. It simply evolved as a power structure in that time period. It was run by politicians, men who craved power. They corrupted much of it, with many issues persisting to this day. I honestly believe the members of it that have committed crimes should be punished under the laws of the area they live in. So while I agree with your opinion of violent abuses, I must disagree strongly with your implied causation, when it is simply a case of correlation.