Have you ever read the Battles of Rome? They did the same thing to everyone they went to war against. How does the Jewish war suddenly become more intense with suffering than any other Roman opponent?
And how does the Roman conquest compare to Ghengis Kahn who killed 250,000 men per day for 6 months? One source claims he killed 1,748,000 people in a single hour. How does Jerusalem compare to that?
Because the city was razed to the ground. Men, women, children. All decimated. If many Jews didn't flee beforehand no one would've survived the initial blood-lust. There's testimony that during the siege food was cut off and so some even resorted to eating their children.
It's not about the number of deaths, it's about the severity of it all (
intensity and duration). If there were only 30,000 people in a town and that entire town was slaughtered: men, women and children alike...with no quarter, no rest or surrendering allowed...and then the town burned with every building that survived the burning smashed to powder, that's considered a massacre.
Secondly, we need to remember that Daniel (as well as the disciples listening the Messiah during the Olivet Discourse) had no concern about "the world". They cared about what was going to happen TO THEM. Their concern was for
their people. The Angel and The Messiah were speaking about the
great suffering that would befall the Jews that wouldn't be matched "
since there was a nation".
What nation of people has suffered (in intensity and duration) for hundreds and hundreds and hundreds of years, since they were expelled from their homeland, more than the Jews?
We have to acknowledge (though some might not want to) that throughout history there were many surviving Jews hated and mistreated by many gentile
Christians & Catholics for "murdering the Christ"; also considered "heretics" and "judaizers" to both papal authority as well as to laity and royalty...kicked out of countries...blamed for diseases...and they were also the primary victims of the inquisitions. And on and on throughout history.