May I say that many in Israel are of Israel.
"In Israel" - Are you taking about the Biblical 'all Israel', the people? or the modern geopolitical state that calls itself 'Israel?'
"Of Israel" - Do you mean this as in genetic progeny of Jacob/Israel including nonIsaac descendants?
It could be the case that many Jacob descendants are in the modern geopolitical state that calls itself Israel. But whether these are chosen "all Israel" is not clear. Maybe 100% of the modern citizens are hidden Sauls yet to be realized as Pauls. It could also be the case that 0% of the modern citizens would be of the promises.
It was God's sovereign will that the PROMISE will follow from a strict, chosen, Jewish, bloodline.
It was not by bloodline alone. That's the point that Paul was communicating. And more than that, nonbloodline individuals can be inherited into the promises.
Jewish conversion to Jesus Christ and the sanctification that the Holy Spirit endows.
Agreed, but not every bloodline Jew is guaranteed to turn to Christ and become grafted into the promises.
God bound everyone over to disobedience so that He can have mercy on them all. (Romans 11:32)
This is talking about "all Israel" not "all of Israel". Not all Jews are "all Israel"
Correct but Paul is still tracing the bloodline of the chosen Jewish lineage.
He was bringing up the fact that bloodline is not the only determining factor for inheritance of the promises. He uses Isaac as an example of this. He is not saying that all descendants of Isaac are heirs to the promise.
Your trying to undermine the genealogy of the Christ, the promised one.
Your comment here makes no sense. If the chosen Jews are a subset of those that call themselves Jews, how does that undermine Christ's genealogy?
You also cannot accept that God chose the Jews, Jerusalem, and Israel.
I disagree with the erroneous context that you are trying to apply to that. True Jews like Paul are chosen (Jews that are in Christ, aka Christians). True Israel (the people) is chosen.
And what do you mean by "Jerusalem is chosen". If you are stating that because prophesies reference mount Zion, etc. you could say that anyone in any prophesy is "chosen" including Satan himself. "Chosen" / "Elect" has a very specific context that you are ignoring.
Why do you reject the truth that Christians are God's chosen people?