You do understand this is not about unconditional election to salvation but of a choice of a nation which would serve God by bearing the messiah and carrying God's message to the world
You understand that you don't understand Paul's context, right? You just invented your own context, didn't you? Where does it say any of this not only in where Paul speaks of Jacob and Isaac, but in this entire passage where the context is that God will have mercy upon whom HE HIMSELF decides to have mercy, and He will harden those whom HE HIMSELF decides to harden. I'm not seeing any of what you said above in this section at all. If you can't get the context of the passage, you aren't going to understand the passage properly. Here is what Paul said in regards to Jacob and Esau, once again, and if I could, I would turn the volume up higher so you hear it this time.
"Yet, before the twins were born or had done anything good or bad—in order that God’s
purpose in election might stand: 12
not by works but by
him who calls"
Can you tell me where, in the statement above, can you find:
You do understand this is not about unconditional election to salvation but of a choice of a nation which would serve God by bearing the messiah and carrying God's message to the world
You see, there is a context to this whole passage, into which Paul dropped the verses above. What you are saying that the passage is saying, finds no place within the context of the passage here. You can't remove a few verses from this section, mash them with verses from a whole different part of the book, and say they are saying the same thing. Paul used the prophecy to make a point, and you are denying God His point. The point in terms of election is that that God made His choice between Jacob and Esau, a. before the twins were born and b. before they had done anything good or bad, and He did this that His purpose in election might stand. Remember God is unchanging. So for God, in election, there is one standard, in everything that God chooses, and that is that it is not by works (so nothing we do), but by Him who calls. So, God choosing Jacob over Esau, Israel over Edom, Judah over Israel, Israel over Pharaoh, believers over unbelievers... it does not matter. His purpose in election stands across the board. Not by works, but by Him who calls. This fits in the overarching context of this passage which is God hardens whom He wills to harden, and He has mercy upon whom He wills to have mercy. It is not by works, but by Him who calls. Did Pharaoh in and of himself do something that caused God to decide to crush Him, or had God planned long ago to send Joseph to Egypt, to be followed by Jacob and family, and then chose to rescue Israel from Egypt and glorify himself through the utter humiliation of Pharaoh and Egypt, and the pouring out of wrath upon Pharaoh and Egypt? God Himself said it was so He would be glorified in the surrounding nations. He also said that He didn't choose Israel for some incredible special reason, like Israel being a great nation, or that they themselves, in and of themselves, were so incredible. He said they were small and insignificant, yet He still chose them, out of all the great nations of the world surrounding them. It is in the New Testament that we find out that it was for the sake of the forefathers. (Abraham, Isaac, Jacob, etc.) Even so, having the whole record of the Old Testament, we see it as well, since we have the whole story from Abraham on up. The Jews at the time had no idea.
Fine
So the passage does not teach unconditional election to salvation
and then there is no argument
The argument is that it states that
any election is unconditional. God is unchanging, and Paul says that God's purpose in election stands. You fight against God. No one says you have to be a Calvinist, but you should at least understand this. There are people who believe these things, yet have no desire to be identified with calvinists.