To put it in perspective, Germany in 1939, with all the lands they acquired by that date, had a population of 79.4 million. Iran is larger! Germany came close to seizing the entirety of Europe, parts of Africa, etc. Taking on a nation of 90 million people with the intent of killing as few as possible is totally moronic!!!
Iran has always been deceptive, with everything they do. If we are intending to totally destroy their military might, we have to resolve killing large numbers of their people in the areas the IRGC is strong.
And in the end, not deploying boots on the ground is not an option. If you want to win any war, it requires boots on the ground, unless you intend to nuke them! And we know that will not happen.