If it isn’t, then we cannot trust it ON A SINGLE POINT, including the life and sacrifice of Jesus.
I'm curious how you reconcile this extreme position with your well expressed knowledge of the many variants of the Greek NT. I hope I'm not assuming to much by saying I think you believe the Bible is trustworthy. I certainly do. Would you say that the Bible is trustworthy inspite of the many variants? I do.
And to add, what I hope is a point of agreement, the Bible is either correct regarding the role of Jesus Christ as our Savior and Redeemer, or it is not. Jesus Christ is either our Savior and Redeemer or he is not. There is no middle ground.
We have been over the ‘variants’, most are misspellings that are easily determined or transpositions either of letter or word. Only about 50 of them are of any consequence and even those do not affect faith and doctrine. So these, variants do not make the bible untrustworthy.
And it is trustworthy on what it says about Christ, but SOME groups misrepresent scripture and take things out of context to come up with a different Christ (like the atonement taking place in the Garden when the NT points to it taking place ONLY on the Cross).
Here is a book on the topic I suggest you read (it also addresses the various current translations): How to choose a Bible Version - Robert L. Thomas.
Have you ever done any translation work, particularly from the Hebrew and Koine Greek?
And the LDS (as Godzilla quoted Orson Pratt) have not taught that the Bible is trustworthy, hence the need for other scriptures and the JST (which contains MANY MANY changes not in any of the MSS).