I asked the question because I'm not sure what exactly you meant by 'understand'. Do you also understand why those actions make things worse and how it results in terrorism more likely, rather than less?
Why do I understand Israel's response? Because the history of the Jewish people is one of persecution over many centuries, including most horrendously within living memory during the mid-twentieth century, a few survivors of which are still alive today (as are some perpetrators). And Israel as a country has been attacked by its neighbours more than once, and continues to be attacked, not, as with most warfare, with the aim of invasion and seizure, but to eliminate the country and annihilate its Jewish population; that is what Hamas desires. Finally, the events of the last few days have seen savagery and viciousness on a level rarely if ever encountered, guaranteed to enrage the people affected and elicit a ferocious response.
And yes, I do understand that a response as ferocious as that being carried out by Israel now will make things worse, in fact I said, again in my Post #371 part of which you quoted (but do not appear to have actually read)
'By continuing the assault on Gaza Israel is simply creating more anguish and hatred (and therefore support for Hamas).'
I sincerely hope that sense, and human compassion, will prevail and Israel will realise the ultimate futility of its actions, if not by its Government alone but by the USA bringing its influence to bear, however there does not seem to be any sign of that so far. I also hope that Hamas will release, unharmed, the hostages it has taken but that is even more unlikely, and almost certainly no longer achievable anyway.