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Pogrom btw
Edit: The translation and perpetrators are accurate, but there are suggestions this did not happen in Amsterdam but in Israel. I removed the mention of Amsterdam from the title just in case.
Re-edit: Ai is pretty cool. It was in Amsterdam.
I remember it used to be a way bigger problem than today. To the point where they beat other guests to death. At least in Germany they cracked down and it's mostly under control now, with a lot of police presence.