I'm not so sure about your appreciation for the "blood" of Jews and about "circumcised in heart with Christ's way". 1. the promise to Abraham was to him and his SEED. If Jew A has four children they are seed of Abraham. If one of them marries a Turk and they have four children, they are SEED of Abraham via the Jewish part. If you argue that the bloodline is untrue, you have then to explain why Jesus could be a Jew with Rahab, Ruth and company in His genealogy. Scripture validates the male line as Jesus is of David's House. So also does scripture validate the female line as Jesus was a Jew from Mary - him not having a biological father. 2. Ezekiel 37 covers Israel's recovery. Since seed of Jacob died in Egypt, the Wilderness, the Land of Canaan and the countries that they were dispersed to LONG before Christ's "WAY", Ezekiel must include grave sinners. Daniel 12:1-2 shows that even the evil will be resurrected and returned to the Land. The matter is confirmed by Pentecost were there were many "PIUS" men from the dispersion in Jerusalem form diverse countries. Why were thy not in Israel? 3. Jumping ahead of Romans 2, Romans 11 is a serious indictment against "ALL ISRAEL". They are "concluded in unbelief by God until the times of the Gentiles be full" That is, Israel, as a recognized Nation by the Holy Spirit remains in unbelief till the end of the age, and God's forgiveness of their sins is pure grace. The matter is certainly not simple.

Yeah if you think about what God told Abraham, if he could count the stars  "And the LORD brought Abram outside [his tent into the night] and said, “Look now toward the heavens and count the stars—if you are able to count them.” Then He said to him, “ They say what we can see is about 6000-8000.  Hmm looks bad for all us huh haha..sorry. Yet what they also say" If you were to look outside on a clear night, you could see as many as 6,000 stars over your head. That seems like a lot, but it's just a tiny fraction of the total number of stars in outer space. According to astronomers, there are approximately 200 billion trillion stars in our observable universe." Yeah God said the stars.. no one can count them way to many. As He showed me this tiny tree with so many branches said "Show me a branch that was not originally of the vine. I am the vine you are the branches". Then as its written, as Isaac was we are the Children of promise.  He said to them "‘When a stranger resides with you in your land, you shall not oppress or mistreat him. But the stranger who resides with you shall be to you like someone native-born among you; and you shall love him as yourself, for you were strangers in the land of Egypt; I am the LORD your God." He has not changed.. All that are grafted in no one but no one can tell what branch was original vs grafted in. They are the same to GOD. 

Actually the original Greek doesn't say shall, it says might not perish or should not perish.  The not is a  conditional thing.   There is more to it than just believe.  One has to believe to even start.

There certainly are Christians within a State sponsored religion, but knowing how this organization was led after the edict of Milan, when Constantine legalized an approved version of Christianity, do you really believe any of the Apostles or Jesus would have accepted it as His Church? Reading the history of this organization through the first millennium, A.D. will scandalize nearly anyone. 

"No temptation [regardless of its source] has overtaken or enticed you that is not common to human experience [nor is any temptation unusual or beyond human resistance]; but God is faithful [to His word—He is compassionate and trustworthy], and He will not let you be tempted beyond your ability [to resist], but along with the temptation He [has in the past and is now and] will [always] provide the way out as well, so that you will be able to endure it [without yielding, and will overcome temptation with joy]." "Therefore, my beloved, run [keep far, far away] from [any sort of] idolatry [and that includes loving anything more than God, or participating in anything that leads to sin and enslaves the soul]." I like that word flee "To flee, escape, shun. by analogy, to vanish." Keep the faith, walk by faith live by faith and remember His promises and at all costs do not let what's happening in the world distract you.