Or because they are aware of the conditions of life imposed in Palestine?
That 50% of the children in Gaza express no will to live? That 95% of the water is contaminated and Israel strictly controls the water supply? That thousands of civilians have been killed by the Israeli army since 2008? That Gaza functions as an open air concentration camp administrated by an openly racist apartheid state? That Israel helped fund and create Hamas in the 70s and 80s as a counterweight to the largely secular leftist PLO and this whole fucking situation is partially blowback from an effort to divide-and-conquer Palestine? That Hamas fucking chased the PLO out of Gaza, and now Hamas is essentially the only militant force left that can resist the ethnic cleansing of Palestinians?
Who else is there for Palestinians to root for? What the fuck are they supposed to do? Just sit in their squalid concentration camp and raise their depressed children to be unemployed adults with no future, in a crumbling city with no concrete to rebuild itself, because a rich nation on the other side of the fence deemed it so?
And in an overseas media environment where no one even fucking talks about any of this shit, and the attack is being treated as this sudden unprovoked thing out of left field, maybe some people are going to overcorrect in the other direction out of sheer frustration?