The SDA church IS God's remnant church of Revelation....
....but who are the Remnant?
Revelation 12:17
And the dragon was wroth with the woman, and went to make war with the remnant of her seed, which keep the commandments of God, and have the testimony of Jesus Christ.
The Adventist church teaches Gods Commandments and has the Testimony of Jesus Christ, but do the members follow what God has given them as His truth?
Only those who keep the commandments of God, and have the testimony of Jesus Christ will be part of the Remnant at the end, so those that do not hold on to this or accept it, cannot be the Remnant. If some Adventist fall away as more and more members are picking up strange philosophies, or private interpretations or letting go of the truth and letting go of the Sabbath, and stop believing in the testimonies given through the Spirit of Prophecy, even a hardening of the heart against the truth that they once loved, will they be part of the Remnant of Revelation, I think not.
So what about other Christians, what truth will they have to accept to be part of the Remant as given in Revelation?
Is it different than what truth the thief at the cross had to accept......?