Ahem.... let's take a look at one or two verses of what you quoted:
Matthew 24:21-22
- "For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
- And except those days should be shortened, there should no flesh be saved: but for the elect's sake those days shall be shortened."
The word, "then" [tote] or at that time, connects this verse 21 to the preceding verses, which in turn connect to preceding verses of 20-10 and 10 connects it to 5-9. There is no gap, it's ONE PERIOD. Look how the word "then" [tote] or at that time makes all these verses flow seamlessly together as at that time. For example:
Matthew 24:16
- "Then let them which be in Judaea flee into the mountains: "
Matthew 24:15
- "When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand: )"
Matthew 24:10
- "And then shall many be offended, and shall betray one another, and shall hate one another."
Matthew 24:9
- "Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake."
Clearly, we see an unbroken connection of passages from verse 21 to 9 declaring that "at this time" all these things will happen. To attempt to look at this narrative as diverse eras from verse to verse is to dabble in Eschatological dementia!
God assures us that this [thlipsis] of Matthew 24:21 is speaking about the same time that the things listed in the previous verses were, by saying, then, or "at this time." No novice Greek can make these scriptures "not" say something that they do say.
This is tribulation that is the worst that the world has ever seen, or will see because Satan has gathered his army from the four quarters of the earth. And that if God didn't intervene to shorten the days, there would not be anyone left on earth to be saved. In other words, there would be no election. Look at the verses carefully to note it's not saying there wouldn't be anyone left on earth. God says that if not, there wouldn't be anyone left on earth "to be saved." Remember, God has said that
he that shall endure to the end shall be saved. Thus, the days have to be shortened for the sake of the elect IN THE END. Not the sake for the Jews in 70AD over some falling stones so they can flee to the KOA campgrounds in the mountains as long as it was not during the cold winter months or on sabbath days. Absurd!! That wasnt what Christ talked about.
So if these days of these false prophets, deception, and great tribulation were not shortened, then no one would be saved. The Apostasy would so devastate (desolate) the Church that there wouldn't be any election left to be saved if it were allowed to continue. But for sake of the Elect, God assures us those days shall be shortened. How beautiful is God's Word when it is unadulterated by secular stories, ideas and theories. That is how consistent God's Word is when it is allowed to interpret itself.
The third and final verse tribulation or [thlipsis] occurs in Matthew 24 is in verse 29.
Matthew 24:29
- "Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:"
So here again, God doesn't leave His Word up to Josephus to interpret it's time period like you do, He says immediately after the tribulation "of those days," which is
a continuing theme. What days are in view? The very same days of tribulation that He has just been talking about from the start of the chapter. Thus no eschatological gymnastics to introduce another tribulation 2000 years before is necessary.
And you've already admitted that this [thlipsis] in versre 29 occurs at the end of the world. If that is the case (and it is) then the tribulation preceding verse 29 is also at the end of the world, but the phrase "immediately after." Now we've just about covered every single verse in the whole chapter up to verse 29, and not one word anywhere from God about a multiple tribulation period. The reason is that this is man's self-serving rationalization in order not to receive what "IS" clearly written there.
There are no other verses in Matthew 24 which use the word tribulation or [thlipsis], and I am sorry, but your preterism-infused amillennial thinking that we are all theologically ignorant so that we cannot see this other alleged tribulation in this chapter, is clearly without any foundation in fact.