Okay? Target it then.
They've stated multiple, multiple, multiple times they seek regime change. They killed the supreme leader, they've said they did that to remove the regime. So go ahead. It's the whole purpose of this war, they've never hidden it.











Then don't make threats you're not prepared to act on.
Don't draw red lines then let the enemy cross them or the enemy will never take you seriously. The very fact they're already attacking you in such a massive operation and seeking regime change shows the time for deterrence by words is long gone and the time for deterrence by deeds has arrived.