1 Military take out of Tehran
2 Threat of the same to Saudi Arabia and any other Middle East country that threatens the West
3 Demolition of Mecca and Medina
With these three Islam would be bombed into the 21st century otherwise it could prevail by attrition till Europe is overtaken ,shariad and Islamified.
Until Islam is neutered like Christianity it will pose a threat to civilization and the West will be permanently lighting candles and having endless one minute silences. The time for silence and appeasement is over.
Does the West have self belief to do the above? There is little to no evidence that it does and that is its tragedy.