You're mistaking a territorial conflict for a racial one. The Israeli Palestinian conflict is about land and always has been - there's never been a racial element. Apart from anything else, the Palestinians are not a race, and neither are the Israelis.
Critically and tragically, Hamas terrorists have always chosen to shelter within civilian communities and, common with Hizbollah, al Qaeda and other terrorist factions around the world, have absolutely no regard for civilian life whatsoever.
Conversely, Palestinian terrorists DO set out with the aim of murdering innocent Israeli men, women and children and, as you say, the deliberate murder of innocent people cannot be justified or excused.
And I don't agree at all that there's 'a chilling apathy' on the part of the Israelis - Israel has repeatedly expressed regret for civilian deaths (unlike Hamas), has only targeted terrorist hideouts and has also provided humanitarian aid into Gaza.
This isn't about how many Israelis have died versus how many Palestinians (or, as you bizarrely and wrongly put it, 'Clearly, the life of a Jew is much more valuable than the life of an Arab'). As I said before, this is about security and not race. But in the 2nd World War 10 Britons died to every 1 German - does that mean we shouldn't have fought against Hitler's extremism in the way that the Israeli's are fighting Hamas? After all, Hamas has repeatedly rejected a peaceful solution and only calls for the complete destruction of Israel.
You're forgetting that it was Hamas which made the decision not to extend the ceasefire and continued to fire rockets into Israel in an ongoing breach of this ceasefire - and therefore put the lives of civilians in Gaza under certain threat.
Finally, re: Moondog's post - I don't blame you for trying to write it off as sarcasm because I agree that it is shockingly and horribly offensive (just imagine, for example, that one of the 'Israeli Jews' you mention had read it - how that would make them feel??) but if I responded to a thread entitled: 'AIBU to think the Palestinians are racist?' by saying 'Vile horrible people', would you write that off as sarcasm? I hope not, because it would clearly be deeply offensive and inciteful against Palestinians.