It's not as if they're blowing a puff of cigarette smoke towards you and increasing the probability by 0.001 that you may someday get cancer--people actually die from those rockets.

How many Israeli civilians have been killed by rockets since Operation Protective Edge? Three. Out of a population of 8.1 million.
If Hamas hired tourists to go to Israel and puff smoke in crowed areas it would probably have a greater effect on the Israeli mortality rate.

Furthermore, you left out the part where the guy deliberately shot at you from a crowded neighborhood so that the only way to defend yourself is to endanger the people around him.

As opposed to seeking a political solution?