One of the most prevalent themes lately in the Muslim world is that ISIS was created by Israel (and the West.)
Now, it looks like Palestinian Arabs have joined the party.
This (pretty funny) satirical video from Al Falatiniya TV shows ISIS members looking for excuses to kill every passerby for not being Muslim enough, with the punchline in the end that they happily greet an Israeli.
ISIS, naturally, responds to these slanders by calling for a new Holocaust against Jews to bolster its antisemitic bona fides.