I apologise, they didn't remove books they modified them.
Instead of offering innuendo, can you offer specific examples of changes?
If you read the New Testament it makes little reference to the Roman Empire.
Ever read the Revelation of Jesus Christ (the last book of the bible)? How about The Epistle of Paul to the Romans? What about Ephesians? Good grief man, critical commentary on Rome and advice for stickhandling around the cult of the Emperor is throughout the New Testament! Most of the time, the language is coded and muted, not because of support for Rome but to protect the writers and listeners, who risked death for saying things against Rome.
If I was from Palestine, I would detest the Roman occupation.
The Roman occupation, although hard, was not the main target of local anger. The locals were more displeased with the local temple authorities and the Sanhedrin than with Rome.
This is the word of Emperor Constantine (who I believe is the true founder of the Roman Catholic Church) who had the Bible edited to pacify the masses in a corrupt Rome. This mimicked a Christian reformation of Rome and the Christian populace supported it. If any of the stories in the bible are true, why is Jesus presented in an impossibly perfect way.
You're simply flat wrong about Constantine being the "founder" of the RCC. And here we go again with the innuendo. If you don't have any specific information or evidence, please desist. (Put more bluntly, put up or shut up.)
Immaculate Conception is another too-good-to-be-true scenario. Mary was a 13 year old! She probably had Joseph's other children (a single child was not economical). She was not a virgin for her whole life. Get realistic!
I don't agree with this doctrine either, but there are much better ways of criticizing it than "Gawd, it's obvious they're wrong!"