If the question was: should the Iranian threat be neutralized then 99.9% would say yes. However how can you expect from normal people to know whether the attack is the most efficient solution? Without well informing the public on the Pros and Cons of such an attack, any opinion is irrelevant and even dangerous.
Israeli PM to Palestinian President Abbas: We must fight terror together (Haaretz)
from the article: Haaretz poll: Israelis evenly split over attacking Iran