You made a number of points above. We are speaking of history here, so let me cite a number of historians, one of them being of the Roman Catholc persuasion, in support of my points regarding historicism and its prophetic implications. This is a copy of a post I offered as part of another thread a few years ago.
2 That ye be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, as that the day of Christ is at hand.
3 ¶ Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition;
4 Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.
5 Remember ye not, that, when I was yet with you, I told you these things?
6 And now ye know what withholdeth that he might be revealed in his time.....
Authors note: this bolded portion is commonly referred to as “the restrainer”, that is, he who with-holds the development, establishment, or appearing of the Antichrist. The modern understanding of these verses, particularly in the futurist paradigm, is that the restrainer is in fact the Holy Spirit. The following evidence however should dispel such thoughts, and reveal the true facts
.....7 For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way.
8 And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming:
9 Even him, whose coming is after the working of Satan with all power and signs and lying wonders,
10 And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.
Nearly all commentators are unanimous That the 'restariner', so called, was not named by Paul because it was too dangerous. He had already spoken in person to the Thessalonian church on the matter, so they knew who Paul was writing about...the very power that if it had read that letter, would take no little umbrage to being informed that they would soon be removed from power and another rise up in their stead. The 'restrainer' of course being pagan Rome.
Not a few of the early church fathers wrote on this subject, and all agreed that Rome was the one eluded to in Paul's letter. Let me quote one or three.
Tertullian (160-240)
“‘For the mystery of iniquity doth already work; only he who now hinders must hinder, until he be taken out of the way.’ What obstacle is there but the Roman state, the falling away of which, by being scattered into ten kingdoms, shall introduce Antichrist upon (its
own ruins)? ‘And then shall be revealed the wicked one.”
“On the Resurrection of the Flesh,” chapter 24; Ante-Nicene Fathers, vol. III, p. 563
Elsewhere, Tertullian states:
“The very end of all things threatening dreadful woes is only retarded by the continued existence of the Roman Empire.”
(“Apology,” chapter 32; Ante-Nicene Fathers, Vol. III, p. 43).
Lactanctius, in the early 4th century wrote:
“The subject itself declares that the fall and ruin of the world will shortly take place; except that while the city of Rome remains, it appears that nothing of this kind is to be feared. But when that capital of the world shall have fallen, and shall have begun to be a street, which the Sibyls say shall come to pass, who can doubt that the end has now arrived to the affairs of men and the whole world? It is that city, that only, which still sustains all things.” (“The Divine Institutes,” book 7, chapter 25; Ante-Nicene Fathers, vol. VII, p. 220).
Cyril of Jerusalem (318-386).
But this aforesaid Antichrist is to come when the times of the Roman empire have been fulfilled and the end of the world is drawing near. There shall rise up together ten kings of the Romans, reigning in different parts perhaps, but all about the same time; but after those, an eleventh, the Antichrist, who by his magic craft will seize upon the Roman power, and of the kings who reigned before him, "three he shall humble" and the remaining seven he shall keep in subjection to himself."
Much could be said about this quote; he also is clearly linking the prophecy of Daniel to the text of Paul’s, agreeing with other eminent writers of his time that out of Rome would evolve ten kings, 3 of whom the antichrist would subdue. When the restrainer, Rome, was to be taken out of the way, and the horns of
Ambrose (died 398)
“After the falling or decay of the Roman Empire, Antichrist shall appear.”
(Quoted in, Bishop Thomas Newton, Dissertations on the Prophecies, p. 463)……
Chrysostum (died 407)
“When the Roman Empire is taken out of the way, then he [the Antichrist] shall come. And naturally. For as long as the fear of this empire lasts, no one will willingly exalt himself, but when that is dissolved, he will attack the anarchy, and endeavor to seize upon the government both of man and of God.”
.....and finally Jerome (died 420)
“He that letteth is taken out of the way, and yet we do not realize that Antichrist is near.”
(Letter to Ageruchia, written about 409A. D. Letter 123, section 16; Nicene and Post-Nicene Fathers, vol. VI, p. 236
Jerome's testimony is interesting, because from his perspective, he had seen and witnessed the fall of Rome, but was yet to see the rise of Antichrist. The reason is that history had not yet revealed who the Antichrist actually was, despite the early beginnings of the church of Rome at that time. The 3 nations had yet to be vanquished: It was this event that would definitively prove the Antichrist's identity.
I think it would be a good time to quote a Catholic source, the eminent historian Cardinal Manning.