The Mt24A passage is not futurist. Neither is its earlier parallel Mk 13. Those passages are about 1st century Judea. Check all the details for that. At Mt24:29, it goes future and worldwide, and is expected, originally, to be right after the horrible time in Judea.
However, an allowance is made that the final day of worldwide judgement may be later, and we know it was.
The future worldwide day of judgement has no Judean detail to it; it would make no sense to.
The expression AofD started as the rebellion that desolates in Dan 8:13, a rebellion that would take place during the 4th kingdom that overran Israel, mentioned later in ch 8 and 9.
Christ was speaking of a person. Let the reader understand that. It would not be an image placed by an outside party. it would the the noxious actions of the rebellion and its leader; he would be found setting up in the temple and would ruin the country. There are events in the Great Revolt of 66-72 that follow this close enough.
Luke (Paul's) was written last, latest. When he comes close to this, it is no longer about watching for a person, but watching out for the city to be encircled. The Romans did encircle of course as part of their siege works, and this is certainly what is meant in 19:43, which passage is full of expressions from the first destruction of Jerusalem, but updated with Roman military vocabulary, making it unmistakable. However, we should note that Festus sought to protectively encircle Jerusalem even before that, but died during the constsruction and it was stopped and used against the city, once the zealot rebellion had overrun it. Festus, Agrippa and Bernice were interested in preserving the city as members of Judaism, and tried to stop the zealots.
There is also an account (in Josephus' JEWISH WAR) of Bernice making a direct appeal to a particularly horrible Roman figure, Florus, because he was agitating the rebellious zealots and trying to get them to fight.
So I think Festus effort to protect the city is signal enough for Christians to leave the city. Some stayed and were miraculously able to escape when the surrounding by Roman siege was interrupted a couple years later.
But Christ's remarks about how the zealots/Judaizers would ruin the city are not directed at Roman admins; they are all directed at the zealots; 'leistes' in Lk 19:46 is not a common thief; it is a terrorist, an insurgent. Part of this was to show in Luke-Acts that Paul was not part of any such rebellion at all.
Many, many passages in Paul refer to the 2nd coming in judgement being right round the corner. I don't know when 2 Peter was written but it appears to deal with this difficulty ('where is the coming?' 'some things in Paul's letters are hard to understand'). Once 72 went by and the world continued on, only the basic instruction to keep proclaiming Christ as Lord to all men, and his eventual return in judgement is clear.