Comment by anigbrowl
I don't want to go on a pdf hunt for the one perfect paper now, but years of social science and historical reading inclines me to believe that external attacks almost always unify rather than divide a population.
Consider how Gaza has been pounded mercilessly for most of a year now, with the burden falling mainly on civilians, but they're not turning on Hamas.
Good point, but I'm also not sure it will cause a significant shift in positive support beyond anything already seen. Other commenters here have said 50,000+ rockets/missiles have been launch by Israel so far in this conflict. Those are much more damaging so I'm not sure support will increase base on this.