Actually, there are some Hebrew bibles that do contain the deuterocanonical book (African /Ethiopan Jews), moreover, during Jesus’s lifetime the consensus on what was scriptural or not varied, i.e., the Sadducees, Pharisees and Greek-speaking Jews of the diaspora all had different opinions concerning the validity of what was and wasn’t scriptural. The majority, however, used the septuagint that contained the deuterocanonical books. This changed after Jesus’s death, i.e., they held a council in the latter half of the first century wherein they decreed the deuterocanonical books were not scriptural, but these were the very same Jews who did not recognize their own Messiah, and upon which you are relying on to determine the validity of said books. There are many examples of Jesus and the apostles referencing the deuterocanonical books in the N.T., and for this reason alone they should be accepted as scriptural. I know that even the didache (teaching of the twelve) also contains references and quotes to these books. There were also councils in the past that listed what was scriptural, these councils are: the Council of Rome (382), the Council of Hippo (393) and the Council of Carthage (397 and 419). The Council of Carthage of 419 is special because its canons were implicitly affirmed at the 7th ecumenical council of Nicea II (as well as Florence and Trent). The Catholic Church has always understood that the deuterocanonical books were scriptural, i.e., divinely inspired (and so do the Orthodox), so Protestants have indeed done away with parts of the Bible. And you cannot say that Protestants do not determine what is not canon because they have relegated the deuterocanonical books to non-scriptural status (apocrypha) on the basis of the Hebrew bible, i.e., Jewish authority post-resurrecton.