It's not genocide, and little details are knows as to why they were killed. The ones struck by rockets are the casualties of war, just like Russian citizens who annexed The Krim (or were born there) could die there if Ukraine is fighting to take the land back.

I don't know how it went down on the streets. Shooting on fleeing citizens is still a no-go in respect to the Geneva Convention (Palestine has agreed to all terms, Israel has not 1), which is unlikely given the low number of deaths on the Israeli side, versus the Palestinian side [2].

It would seem likely that the additional deaths were of civilians who were attacking those taking part in the conflict, which revokes them of the protections granted to civilians.

It's a complicated conflict, and I'm just making assumptions (as are you), but comparing casualties on both sides and hearing the atrocious stories of the Israeli government beating down innocent Palestines on their own grounds, does give me a tendancy to lean towards Palestine more.

[2]: see sibling post.