I understand that SDA's CLAIM to believe there will be saints from every denomination. But my experience with them as far as what they act as if they DO believe is quite different. I have observed more than one shaking their heads after speaking to a happy, joy-filled Christian from another denomination, and say, "There's nothing sadder than someone who thinks they're saved and isn't." And after one Bible class, in which it was noted from Mrs. White's writings that Satan will continue to be punished long after others have been obliterated, someone observed, "And right there with him will be all those Sunday people." No one refuted the statement.
So does the official church literature say that there will be saved Christians from other denominations? Yes. Does the average SDA actually believe that? Not in my experience.
Jesus did say, "If you love me, keep my commandments." He also said, Matthew 18:9 "If thine eye offend thee, pluck it out and cast it from thee: it is better for thee to enter into life with one eye, rather than having two eyes to be cast into hell fire." Ouch! Ever look at something you shouldn't have looked at? Then I assume you no longer have both eyes, since you want to keep Jesus' commandments to the letter.
If people want to nitpick down to verb tenses and prepositions, how many are willing to take Matthew 18:9 literally?
"The commandments of God" in Rev. 14:12, to me, is not synonymous with "the ten commandments." There are many, many other commandments in the Bible besides those ten. Your church's insistence on the Levitical diet shows that you adhere to other commandments besides the ten. But James tells us that if we keep the whole law but offend in one point, we are as guilty as if we'd broken every one. Every SDA in the world has used James 2:10 as a scriptural hand grenade against the rest of us. Is "the whole law" just the ten commandments, or is it "the whole law?" If it refers only to the ten commandments, then why not eat a pork chop? Dietary restrictions are not in the ten commandments.
Now, one last thing about Scripture wars. I think the whole mental image is ridiculous.
"The Bible says this!" (pin-pulling, toss, whistling sound, explosion)
"No, it really says THIS!" (more of the same)
Paul did talk about spiritual warfare, but I don't think we were supposed to use it on each other.