Either way, since most 9/11 terrorists were Saudi and funded by Saudis, should we object or maybe send Iran a warm thank you once the Kingdom of Saud is no more? I say send them the thank you.
That is incorrect. Bin Laden was born in Saudi Arabia to a wealthy family. He was also well educated, some of that education in the US, but he turned on the Saudi family, who were and are friends of the US, and was tossed out of his family and went to another country where he put together the men to attack the US. He totally funded those men and that attack.
I should have also written above that the reason he turned against the Saudi royal family was, they allowed the US to have an air base there and to Bin Laden that was treason, an affront to Islam and the Prophet and Allah, and for that reason he would attack the US.