Thanks for your insightful questions. I'll try to answer them.

1. Support in Iran for regime change. This is a difficult one to answer. There are 3 metrics I look at:
   a) there were very large numbers of protestors earlier this year;
   b) Mossad & IDF has a huge amount of help from Iranians inside Iran both over the years and especially now with information being called in that is allowing almost real time hits on regime figures & thugs; and
   c) the Iranian diaspora is very supportive of regime change & installation of Pavli (although this is a self selecting sample).

There is certainly substantial support. Whether it is majority or even needs to be is unknown. Plenty of revolutions are carried out by only a small minority of people. Most are passive.

2 & 3) Iran was a fairly free country before 1979. It is not some Arab dictatorship. The Persian People have a 3000 year old history (& close relationship with the Jewish People). Put simply and a bit crudely, the Iranians are smart, civilised and sophisticated people, quite unlike what the US was mostly dealing with in Iraq & Afghanistan (stupid, ignorant, inbred tribalist goat-fuckers).

Also, the US has been very clear that this is not a "nation building" exercise. This is about breaking things & taking out the bad guys until someone half decent arises.

A land invasion would be "to enter Tehran, overthrow the Islamist regime and install a friendly regime and then leave."

No democracy or nation building. Just making sure the bad guys are dead and someone rational (not a crazy Twelver Shia Islamist) takes charge.