Everything you've stated above, absolutely. It's knowing the difference between a literal, & a spiritual application. I'm w/ you so far here.
This is where the confusion lies 
I don't subscribe to Replacement Theology.
Let us carefully consider what the scriptures say.
Nowhere, at least in my observation, have I noticed Biblical Christians suggesting that every single Israelite (Jew) will be saved. That's like saying every single Gentile will be saved, which clearly is not the case b/c not every Gentile will believe. You have to understand God's history w/ His people. They're presently blinded in part (Romans 11). God is doing something different presently, forming a body of believers, members of His body, where there's neither Jew, 'nor Greek. So how then can we be a spiritual Jew/Israel if there's neither Jew, 'nor Greek? We're a spiritual body, one new man, not a spiritual nation. (Galatians 3:28; Colossians 3:11; Ephesians 2:15; 2 Corinthians 5:17; Galatians 6:15) Also, something new cannot be born again, only something that previously existed (Exodus 4:22).
I also do not subscribe to the Body of Christ being the bride, the Lamb's wife, 'nor do I believe the Body of Christ will return w/ Jesus Christ at His second coming to reign w/ Him in the Millennium kingdom. God has different purposes for Israel, the earth, the Body of Christ, & the heavens. If you don't rightly divide like God commands, you end up mixing ministries. In some cases, mixing them together entirely. I'll let the scriptures in the link below prove that God hasn't replaced Israel w/ the Body of Christ.
https://berean-apologetics.community.forum/threads/the-bride-of-christ.2655/#post-202035
There is nothing wrong w/ Christians studying eschatology. Because most don't rightly divide, they place themselves in the Hebrew epistles. Jesus told us who His audience is, same w/ Jesus stating the audience of the twelve. The apostle Paul is our apostle. We follow God today through Paul, as Israel followed God through Moses, then Jesus Christ, & now the twelve (Matthew 10:5-5; Matthew 15:24; Acts 9:15; Romans 15:8; Romans 11:13; Galatians 2:8; 1 Timothy 2:7; 2 Timothy 1:11;
1 Peter 1:1; James 1:1; Galatians 2:9). This cleared up SO much confusion for me.
"And when
James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me (Paul), they gave to me (Paul) and Barnabas the right hands of fellowship; that we
should go unto the heathen,
and they unto the circumcision."
Galatians 2:9
Excellent scripture, yes! 
Let's not forget what Peter also said. Even the twelve recognized Paul's ministry was different than Peter's.
"And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you; As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction." 2 Peter 3:15-16
Origen: The Father of Allegorical Interpretation:
https://berean-apologetics.communit...ms-of-the-sons-deity.2185/page-97#post-202412
You need to believe as JESUS commanded
us.
You have Truth mixed with error concerning:
a.) Israel of the flesh
b.) The Israel of God
c.) the Bride and Body of Christ
d.) Exactly what JESUS said to the Jewish people as a nation
e.) Exactly what JESUS says of
us who are in HIM
Example: You said you do not believe the Jewish people were replaced by the Body of Christ.
In part you are correct = the Church does not become the nation Israel on earth in flesh form
Here is where you drift away from TRUTH = you separate the
saved Jew from the
saved Gentile in the Promises of God
Listen to JESUS exact words concerning the Jewish nation on earth = Matt 23:37-39
Hear another parable: There was a certain landowner who planted a vineyard and set a hedge around it, dug a winepress in it and built a tower. And he leased it to vinedressers and went into a far country. Now when vintage-time drew near, he sent his servants to the vinedressers, that they might receive its fruit. And the vinedressers took his servants, beat one, killed one, and stoned another. Again he sent other servants, more than the first, and they did likewise to them. Then last of all he sent his son to them, saying, ‘They will respect my son.’ But when the vinedressers saw the son, they said among themselves, ‘This is the heir. Come, let us kill him and seize his inheritance.’ So they took him and cast
him out of the vineyard and killed
him.
“Therefore, when the owner of the vineyard comes, what will he do to those vinedressers?”
They said to Him, “He will destroy those wicked men miserably, and lease
his vineyard to other vinedressers who will render to him the fruits in their seasons.”
Jesus said to them, “Have you never read in the Scriptures:
‘The stone which the builders rejected
Has become the chief cornerstone.
This was the Lord’s doing,
And it is marvelous in our eyes’?
“Therefore I say to you, the kingdom of God will be taken from you and given to a nation bearing the fruits of it.
And whoever falls on this stone will be broken; but on whomever it falls, it will grind him to powder.”
Now when the chief priests and Pharisees heard His parables, they perceived that He was speaking of them.
The LORD Jesus Christ replaced the nation Israel on earth
with another nation where HE is their KING.
Listen to JESUS = Matthew 23:37-39
“Woe to you, scribes and Pharisees, hypocrites! Because you build the tombs of the prophets and
[m]adorn the monuments of the righteous, and say, ‘If we had lived in the days of our fathers, we would not have been partakers with them in the blood of the prophets.’
“Therefore you are witnesses against yourselves that you are sons of those who murdered the prophets.
Fill up, then,
the measure of your fathers’ guilt. Serpents, brood of vipers!
How can you escape the condemnation of hell? Therefore, indeed, I send you prophets, wise men, and scribes:
some of them you will kill and crucify, and
some of them you will scourge in your synagogues and persecute from city to city, that on you may come all the righteous blood shed on the earth, from the blood of righteous Abel to the blood of Zechariah, son of Berechiah, whom you murdered between the temple and the altar. Assuredly, I say to you, all these things will come upon this generation.
“O Jerusalem, Jerusalem, the one who kills the prophets and stones those who are sent to her! How often I wanted to gather your children together, as a hen gathers her chicks under her wings, but you were not willing!
See! Your house is left to you desolate; for I say to you, you shall see Me no more till you say, ‘Blessed is He who comes in the name of the Lord!’ ”
@Victoria Listen to JESUS who only speaks Truth, so please do this:
Find the Nation which Christ gave the Kingdom to = It is in the Bible/NT Scriptures
