Christian churches do not follow the Bible at one hundred percent, which makes them not holy and Babylon. Apostle Paul commended the Corinthians for not falling preys to a different Jesus, a different spirit, and a different Evangel besides the foundation they received from the Apostles (2 Corinthians 11:3-4).
Even when the spirit of SDA recommends to read the Bible instead if the scriptures of Ellen G White fall short, seventh day Adventists persist in the error of their prophetess whom they cite as authority in matter of difference of doctrines, like their doctrine of impossible or delusional holiness or sanctification (James 2:10).
Consult their 2009 Quarterly, the Wednesday May 5 lesson, where they write that it is a delusion to believe and Ellen G White claims that "There is no point to which we can come and say we have fully attained." Ellen G. White Comments, The SDA Bible Commentary, vol. 7, p. 947.
Revelation 18:4 calls on the people of God to come out of Babylon. Many disagree with some SDA doctrines but they choose to stay, ignoring the calling out of Revelation 18:4.
for God is not a God of confusion, but of peace. As in all the churches of the saints. 1 Corinthians 14:33 ASV
So the church throughout all Judaea and Galilee and Samaria had peace, being edified; and, walking in the fear of the Lord and in the comfort of the Holy Spirit, was multiplied. Acts 9:31 ASV
Take heed unto yourselves, and to all the flock, in which the Holy Spirit hath made you bishops, to feed the church of the Lord which he purchased with his own blood. Acts 20:28 ASV
that he might present the church to himself a glorious church, not having spot or wrinkle or any such thing; but that it should be holy and without blemish. Ephesians 5:27 ASV
And to the angel of the church in Philadelphia write: These things saith he that is holy, he that is true, he that hath the key of David, he that openeth and none shall shut, and that shutteth and none openeth: Revelation 3:7 ASV