You do not let rabid dogs into your home, either the Iranians learn this the hard way or there won't be an Iran left to learn this lesson.
Iran managed to begin last war with loss of all of their walls. It wasn't really up to them whom they let in anymore.
Even per released videos, they've lost several years of SAM production, and they weren't really losing old units. What to do with IADS system, which was visibly compromised into oblivion at zero hour?
And how distributed air defense is even supposed to fight, when Mossad literally can coordinate special ops units everywhere around in Iran.
Sure, Israel lost
some of them. Only some. And as such, they'll grow up again. What next, Mossad militias taking cities?
Iranian military, two of them, had literally one job to keep Iran in the game: not lose everything in a disastrous manner early on; then, attrition and public opinion(shot down pilots) could've been made good use of.
Iran lost its entire defensive capability, and kept only retaliatory(which was hunted down). Compare it with many instances in the past, when through hubris or incompetence Chinese (or Persian) field armies were obliterated early on by invading nomads.
Yes, nomads often couldn't take down city walls, and there was a window of illusion that nomads are driven back. But these couldn't take down walls
immediately, that is.