Israel is a powerful nation with all the options they can imagine on the table. If they can’t imagine another option then that’s on them.
You say that, but I don't see any other way to remove the Hamas threat than what they're doing. Is your argument just "Israel is all-powerful and they should find a different way even if we don't see any!"?
are you making the argument that the correct response to a terrorist attack is to genocide the people where the terrorists are based?
What? I'm mentioning Grozny. Have you heard about Grozny? If you haven't, maybe I understand how you could interpret my message in that way, though I still don't think it makes sense. In the second Chechen war, this is what Grozny looked like after Russia was finished with it, most likely on false pretenses (putin faking appartment bombings around Russia and blaming it on Chechens). They simply turned it to rubble.
Israel could do this and get away with it just like Russia did, and their reasons for attacking Hamas are more serious than reasons Russians had to attack Chechnya. Instead of doing that they chose to do a ground invasion, which will reduce the loss of civilian lives and infrastructure, despite the fact that it will dramatically increase the casualties on Israeli side.
That is not genocide, that is deciding to avoid genocide in a situation where they could likely get away with it.