Be careful about throwing that slop around too thick there bud.
The name Seventh-Day Adventist refers to the Seventh-Day Sabbath first referred to in Genesis, and carried on to Jesus day in Israel, and to the idea that Jesus would return to earth again to take away His loyal subjects with him.
These beliefs are bedrock Biblical.
As for other teachings by Ellen White, they each have Biblical basis for support contained within the Bible.
In case anyone needs a link to said mentioned “unspooling” video, it is here commercial free.....
http://www.watchglennbeck.com/