Yes, Edom served Israel, that IS a bigger picture in this, but Romans 9 is concerned with INDIVIDUAL vessels.
15 For he saith to Moses, I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion.
16 So then it is not of him that willeth, nor of him that runneth, but of God that hath mercy.
17 For the scripture saith unto Pharaoh, For this very purpose did I raise thee up, that I might show in thee my power, and that my name might be published abroad in all the earth.
18 So then he hath mercy on whom he will, and whom he will be hardeneth.
19 Thou wilt say then unto me, Why doth he still find fault? For who withstandeth his will?
20 Nay but,O m an, who art thou that repliest against God? Shall the thing formed say to him that formed it, Why didst thou make me thus?
21 Or hath not the potter a right over the clay, from the same lump to make one part a vessel unto honor, and another unto dishonor?
22 What if God, willing to show his wrath, and to make his power known, endured with much longsuffering vessels of wrath fitted unto destruction:
23 and that he might make known the riches of his glory upon vessels of mercy, which he afore prepared unto glory,
24 even us, whom he also called, not from the Jews only, but also from the Gentiles? Ro 9
Saying it doesn't make it so.
Reading your doctrine into the text doesn't count as good doctrine. Cult leaders do that all day long.
As the text itself clearly shows, Paul begins that chapter talking about Israel....
Roamsn 9: 1 I tell the truth in Christ, I am not lying, my conscience also bearing me witness in the Holy Spirit, 2 that I have great sorrow and continual grief in my heart. 3 For I could wish that I myself were accursed from Christ for my brethren, my countrymen according to the flesh, 4 who are Israelites, to whom pertain the adoption, the glory, the covenants, the giving of the law, the service of God, and the promises; 5 of whom are the fathers and from whom, according to the flesh, Christ came, who is over all, the eternally blessed God. Amen.
....the allegory Paul references and that you cite above is about Israel....
Jeremiah 18: 5 Then the word of the Lord came to me, saying: 6 “O house of Israel, can I not do with you as this potter?” says the Lord. “Look, as the clay is in the potter’s hand, so are you in My hand, O house of Israel! 7 The instant I speak concerning a nation and concerning a kingdom, to pluck up, to pull down, and to destroy it, 8 if that nation against whom I have spoken turns from its evil, I will repent of the disaster that I thought to bring upon it. 9 And the instant I speak concerning a nation and concerning a kingdom, to build and to plant it, 10 if it does evil in My sight so that it does not obey My voice, then I will repent concerning the good with which I said I would benefit it.
....and the chapter ends with Paul very clearly talking about Israel....
Romans 9:30 What shall we say then? That Gentiles, who did not pursue righteousness, have attained to righteousness, even the righteousness of faith; 31 but Israel, pursuing the law of righteousness, has not attained to the law of righteousness. 32 Why? Because they did not seek it by faith, but as it were, by the works of the law. For they stumbled at that stumbling stone. 33 As it is written:
“Behold, I lay in Zion a stumbling stone and rock of offense,
And whoever believes on Him will not be put to shame.”
You want desperately for it to be talking about individuals BECAUSE of your doctrine. There is a term for this. It's called eisegesis and with it you can formulate ANY DOCTRINE YOU WANT!!! Want people to believe that you're the second coming of Christ? Eisegesis is your friend! Want people to believe that being a sexual pervert is a good and righteous thing to do? Eisegesis is your ONLY tool. Want people to believe that Satan doesn't exist, eisegesis is THE path to take. You can read anything you want into the text of scripture, including the idea that God unjustly punishes those who are only guilty of that which God himself forced them to do.