I was very interested in your ideas about the Roman Church, two changes were brought in not on your list.
1) The Nicene creed, Papists believe that the Holy Spirit procedes from the father and the son, whereas true Christians beleive in what Jesus said, that the Holy Spirit proceeds from the Father. This change was brought in by the Germans and was rejected by the 'pope' at the time.
2) True Christians still celebrate Christmas on the original day, which is the 7th of January. This is the day Russians, Serbs and Ethiopians celebrate.
If you accept that the Holy Spirit proceedes from the Father and the Son and you celebrate papist Christmas as opposed to the true Christmas day then you are a Roman Catholic, and in that I would put the Church of England, Constantinople - who celebrate Christmas with the papists and Easter with the Christians - and most people who call themselves Protestants. 99% of Jesus's followers are papists, sad but true.
You are accepting two decisions, made on the authority of one man the Bishop of Rome, the so-called Pope.
It makes absolutely no difference what anyone believes beyond what is taught in the Scriptures. If the Nicene creed happens to follow the Bible; well, that's nice but I follow God's word, not the Nicene creed. The Bible teaches, "When the Counselor has come, whom I will send to you from the Father, the Spirit of truth, who proceeds from the Father, he will testify about me" (John 15:26). This is the only verse that mentions the Spirit proceeding from anyone.
In regards to Christmas, it doesn't exist in the Bible, nor does Easter. These are man-made holidays and have nothing to do with the Christian religion. See Holiday Observances for more details.