I know there must be many different motivations, I am just curious why this is the last great, accepted predjudice.
You have to admit, that pointing out problems with the Roman Church is just too easy. Not to say that many of the same problems don't exist with her protestant daughters, but her history is so bad as to make you wonder what people are thinking.
If it wasn't for lack of birth control, resulting in endoctrination of more children, and ensnaring new members through marriage, I can't imagine how the church could have survived. No one, except a small percentage of entrenched Catholics really believe the doctrine that the Pope is "Christ on earth". A history of torturing, confiscating property, and then burning your victims, whether dead or alive, doesn't add up to a solid track record of having good fruit. The Lutheran church may be as rich as the Catholic church, but they don't flaunt their wealth and political power, plus their members seem to be better off financially, whereas the majority of Catholics seem to be poor, and receive little support from the church.
It is not that I have anything against Catholics. My whole family considers themselves Catholic, in that they go to church on Easter, and are buried by a priest, excepting one sister, who decided to join a fundamentalist church. Inititally she was a Catholic's Catholic, except by getting too close, it let her see too many flaws.
The main point is that the Roman Catholic Church is the mother church. The others may accept a lot of her doctrines, canon, dogma, creeds, etc., but you can't address the flaws of thousands of individual sects. I can see were people think they are too invested in time, money , and false hope in false dogmas to change, but let us get real. Just look at your leaders, and decide if that is good as it gets. Individuals may follow the teachings of Yeshua, but the fundamental teachings of their churches, does not.