Of course they do. Those in the USA who continually back Israel are imo enemies of the USA. It's ok to be friendly, it's ok to be an ally, it's absolutely NOT ok to back Israel in everything they do. Just like I believe of all places that we send foreign aid and have to much involvement with, if they wish for it to continue they can apply for Statehood and adopt our Constitution. If they are not willing to do that, then they are not worthy of our aid.
Its all well and fine to assert with good evidence that false flag attacks have been used in the historical past with great effect.
But if the USA and especially Israel use a false flag or real flag justification to attack Iran, it still will not stop a very real Iranian counter attack that could prove devestating to Israel, US, and world interests.
No one in their right mind should feel froggi or assume any war is going to be cost free to their side.