metis
aged ecumenical anthropologist
As most things in this complicated world of reality and facts, there isn't a single, sole cause.
It is foolish to disregard the attitudes of the Iranian regime. It is also foolish and just as dangerous to disregard Israel's.
Which is why I wrote "almost".
We know that Iran is the main supplier of weapons to Hezbollah, Hamas, Islamic Jihad, the Houthis, some Syrian elements etc. We also well know that the Iranians, who largely Shi'i, will never accept a non-Muslem control in that region based on the Hadith teaching that once an area is under Islamic control it must remain as such. Imagine if you were in Israel's position with your small country being attacked on three of its four sides by hostile elements more than willing to kill your own civilians such as what we witnessed 10-7.
Religious wars are pretty much a thing of the past with the West, but that certainly ain't the case in the Middle East. And this is not new as please do remember the two Intidals aimed at killing Israeli civilians.