I am saying that when one fights a war, one should fight to win in as short a time as possible. The only way to win a war is convince the civilian population of the other side that any price they might have to pay is better than for the war to continue.
You make two mistakes. The first is that you believe that Israel killing civilians will not stop Hamas. At some point, if Israel makes things horrific enough for the civilians after a Hamas attack, the civilians will stop supporting Hamas and instead report them to the IDF. Second, you seem to believe that Israel targets civilians, they do not. Israel targets military targets, which have been intentionally placed so as to maximize civilian casualties when Israel inevitably destroys them.
If you want to understand what I am talking about, read about what the French did after WWII in the parts of Germany which they occupied. The Nazis did not stop fighting with the fall of Berlin. They attempted to continue fighting a war of terror against the Allies. The Allies were ruthless in how they dealt with civilian populations among which they found the Nazis who continued to fight.
it appears that you do not care if those casualties that you wish to inflict are against valid military targets or against civilians. Is that correct?
No, that is not correct. That would actually be the position of Hamas. For that matter, Hamas only mildly prefers that the civilian casualties be Israeli civilians. They are just as willing for the civilian casualties to be Arabs living in territories they nominally govern. Hamas actively promotes civilian casualties among the Arab population, as long as they can blame it on the Israelis. They will even inflict those casualties if they believe that Israel will get the blame.