Skeptical
Whether it is a country or an ideology that is attacked by a democracy, it is an attack. Certainly Vietnam and Palestine were  not clear and present dangers.

Vietnam was to stop the spread of Communism, but that was not necessary. Odds were it would fail as it did.

Palestine was to establish a Jewish state. A deal made with the Brits in WW1 and implemented in highly emotional times, after the Holocaust. That essentially handed Hitler's goal of exterminating Jews over to Muslims.  

Attacking an ideology does not legitimize the attack. 

"An overwhelming percentage of politicians think they can solve the worlds problems with a hug or a blue beret. This is foolish thinking." Where is your data to support that statement? My recollection of the past 70 years is that politicians have tried to solve problems with violence. That certainly has not worked.

Establishing a Jewish state in the ME was a mistake. Moving it is within the capabilities of Jews. 1/48th of Texas.