No, it doesn't "always"

Particularly when everyone in opposition is dead or otherwise pacified to the point where they won't or can't.

Besides, don't forget, that is literally the goal of Hamas.

And again I would not take a bet that Israel is not determined enough to hunt down and eliminate all of Hamas, by any name.

You have to remember, this country, these people, over sixty year later still hunt down Nazis. They will hunt down every 90+ year old frail Nazi on the brink of death they can find and bring them to justice. I wouldn't bet against such determination.