Sorry, kosta. Your argument only supports what the Bible teaches: God calls each person to repentance and salvation individually. He called the nation of Israel out from the pagan nations but the nation of Israel was not redeemed as a group. Neither is this church or that group. God saves individual souls, not groups.
I never said God saved groups. I said God burdened groups (as well as select individuals) with righteousness. The entire Jewish nation was burdened with righteousness, so that through their righteousness the God of Abraham would be the light to all nations, but they didn't live up to it, just as none other has or would have. Being "chosen" is not a club membership, but a burden of righteousness to do God's work, and no group has been specifically selected for that task like the Jews have.
My point was that God picked individuals from the same group (Hebrews) and not from the diverse pool of ethnic humanity. I never said the nation of Israel was redeemed as a group; I said the burden of righteousness was places on individuals or groups (hich could be as much as the entire nation of Israel, or as small as 12 apostles).