What about "there is war in the middle east, still/again" is remotely unique enough in the last century to be a defining moment of the half-century?
If an event has the potential to be that, it's the near-peer land war in Europe.
The current Israel/Gaza conflict is a blip that is mildly different in degree than the same thing that has happened every decade or so since Israel was created.
Not to this degree in the last few decades. But I feel you are overall correct, it's just that the Internet allows for much bigger coverage of the details of the horrors committed, and it's interesting how governments around the world now fail so completely to shape the narrative.
The October 7th attacks were way worse than Hamas attacks that came before in recent history. The response was way worse than what has happened before in recent history.
And so both sides feel fully justified with their courses of action, because of what the other side did to them. That is the part that is so much not unique.
Governments are still shaping the narrative, it's just that the ones that are most skilled and successful in manipulating social media happen to be the non-Western ones (Think about China controlling Tiktok, or the various Russia election influence theories).
If an event has the potential to be that, it's the near-peer land war in Europe.
The current Israel/Gaza conflict is a blip that is mildly different in degree than the same thing that has happened every decade or so since Israel was created.