I am so disappointed that Israel didn’t respond to Iran’s attack immediately by destroying Iran’s nuclear bomb facilities. Before the night was out, they should have responded.
Exactly!!!
Iran has declared the matter is settled, i.e., "we are now even". The UN Security Council seems to have eagerly accepted that position, as in, "nothing now to be concerned about".
Any response that was not immediate and conclusive will be viewed as starting the next conflict.
Would any immediate response trigger a WWIII? It depends on whether the belligerents are ready. An immediate and conclusive response in this instance may well have given them pause for concern about the realities they face.