Earlier quoted context omitted.
Iran is fighting for survival, Israel and the US are fighting by choice. They attacked Iran not the other way round. US bases, even if also used by UK which aides US it their war, are legitimate targets. US imperialism is the greatest threat to the world.
Iranian kids have been chanting death to Israel and death to USA for 47 years now. They’ve been waiting for this.
In Iran's defence, in spite of being attacked repeatedly with chemical weapons, not once have they retaliated with chemical weapons. This is in line with their beliefs which was formalized into a fatwa by the late Khamenei against nuclear weapons.
I would call that taking a pretty principled stand at a time when it would have been very tempting to redefine them.