It doesn't matter for Israel weather it's based on religious belief or not. But Iran does frame their opposition in Islamic context in its communication to Iranian people. E.g. Khamenei says things like "fighting Israel to liberate Palestine is an obligation and an Islamic jihad." https://www.rferl.org/a/iran-supreme-leader-israel-cancerous...

It might not matter for Israel but it matters for me as an Irishman watching the rest of the world getting sucked into a conflict.

Framing it as a religious opposition paints Iran as an irrational actor which can't be reasoned with, when it appears to me that it's behaving the way it's been pushed to behave by encroaching colonial forces.

I don't believe in Islam or in Judaism but I do believe in radical discourse and trying to understand the position of the other. Saying "it's their religion to be bloody violent and destructive, what can we do?" throws any space for understanding out of the window.