I’d respond hallelujah.
I don’t know what you’ve seen - but have a look at the Vulgate. The bible didn’t originate with the protestants. The Vulgate is much older and we have other manuscripts that are even older still.
If someone took a book they didn’t make, a book that had been around for a long long time, changed it and took stuff out, and claimed that it was theirs, what would you think of it?