Cuz you didn‘t link to an image. It’s a HTML page with a single-image album. The raw image file is at https://i.imgur.com/a2NZ5VH.jpeg (use “Open image in new tab”) so you need to write
![Anyway, the Gates of Hell are that way. See you.](https://i.imgur.com/a2NZ5VH.jpeg)
The civilians who died didn't provoke it. The increasingly fascist government of Israel aren't exactly innocent though. That said, there have been many festivals and concerts attacked by terrorists in the past, and many more where crowd swells have killed a ton of people. The meme isn't even accurate on that level.
The Tribe of Nova music festival in Israel was attacked by Hamas militants. There are at least 260 dead, and hostages have been taken. OP's joke is in poor taste, considering.