Hmm - here's an Israeli who had served on the Gaza border claiming the Hamas attack was an inside job by Israel.
https://t.me/Wikispooks/2524
Little long winded, but not the first such former IDF soldier with this theory.
Basically - the Israel-Gaza border is only about 50km long. It is the most surveilled border in the world, using hte most hi-tech equipment in the world.
Yet somehow a bunch of yahoos in pickup trucks blew up a number of points, drove trucks through with AK-47, roamed around for 7 hours killing and taking hostages, and the IDF never sent a squad of attack copters that were stationed in battle readiness 5 minutes away.
Anyway, that's what he says. I don't know personally, but I think it's critical to not get too locked onto the Mainstream Narrative., which, more often than not is largely a lie.