I believe you are incorrect in your interpretation.
As I read this thread, you seem to claim the high ground by stating that what you are saying is fact from the Bible and not just your interpretation thereof. I think that is where much of this debate has come from - who is interpreting what. You claim ultimate truth because your interpretation is fact from the Bible, but oh by the way, other scripture can easily be interpreted differently through metaphor, simile, symbols, allegory, etc... That just seems far too convenient - for your interpretation. Even when you've given the answer yourself, you never seem to apply that answer, to yourself: "But that doesn't mean everything is a metaphor, or that you can just interpret things you don't like metaphorically. And (Mal. 1:1-3) is no metaphor." It only seems to apply to everyone else with an opposing view.
Words and phrases from the time of the Bible do not mean the same as they do in our day, that is a fact. Men interpreting the Bible, and doing so incorrectly has been happening since the Bible was written and will continue long after all of us are gone (unless the Lord returns in our lifetimes). The interpretation of man has lead to the formation of hundreds, if not thousands of Christian churches across the globe. All of them have some truth, some have more truth than others, some have less truth than others - all due to the interpretation of man and the understanding, or lack there of, of scripture and Gods will.
Having said all that - your interpretation doesn't have to be a thorn in my side, or anyone elses. Why? Because you aren't going to the be the one who judges me on judgement day. You and I and everyone else can disagree on points of scripture and doctrine, but ultimately, the Lord will be there and know our hearts and judge us perfectly. What a HUGE blessing and relief that is, to not have to worry about being judged by someone who isn't qualified to judge (that most certainly includes me as being unqualified). That doesn't mean I can't have my own beliefs, or form my own thoughts about any given topic. It doesn't mean that my opinions don't matter on any given subject - we can all have value - just how much value is where I can leave it to the Lord to decide.
I'll say it again - what Christians have in common, is Jesus Christ. There is only one Jesus Christ, not many. He is the Redeemer of the world. He is the Savior of the world. He atoned for the sins of everyone who has ever been on this world, is on this world, or will be on this world.
Good luck in your disagreement in this thread about how there is more to unite us than there is to divide us. I think you're wrong in your point of view.
And you're free to believe whatever you like.
Again, (Mal. 1:1-3) is no metaphor. (Rom. 9:11-13) is no metaphor. But, again, you don't have to believe it.
According to your view, no one knows anything about the Bible. I suppose that makes you feel better.
I'll say it again. Christians have Jesus Christ in common. But it is the Jesus Christ of the Bible. Correct? And if it's Jesus Christ as revealed in the Bible, according to you, no one can really know anything.
Yes, there is but one Christ. But there are false Christ's. (Matt. 24:23-24) Just as there is one gospel. But there are false gospels. (Gal. 1:6-9) But, according to you, it doesn't matter because no one can really know anything about the Bible.
Do you believe the Bible is the Word of God? Do you believe God intended for us to understand what He wrote? (Rev. 1:3) (1 John 5:13)
As to the 'atonement', yes Jesus Christ atoned for the sins of the world. All of them. But, that doesn't mean everyone has their sins atoned. Jesus Christ provided the life and the blood. But if it is not applied then there is no salvation. Just like with the Passover in Egypt. God gave the specific rules to the condition of the lamb slain, to the application of the blood on the door posts and lintel of the house. (Ex. 12:1-28) So that when God passed over, if He saw the blood, He continued on. If He didn't see the blood, the first born of all the house was killed. (Ex. 12:12-13,23)
So it is with salvation today. Christ provided the life and blood. But the individuals faith in Jesus Christ as the Son of God and Saviour is necessary to have that blood applied to himself. But what happens when one believes in a 'Christ' not revealed in the Bible? Answer: nothing. No salvation in putting faith into a false Christ.