Has long as the Palestinian people exist, and as long as their land remains occupied by settlers, their struggle will not be over.

I was expecting this whole operation to result in the destruction or near-destruction of Israel

How? That is simply not realistic considering the scope of this conflict. Israel has infinitely more resources and more manpower, this has always been a case of asymmetrical warfare.

There isn't enough being done by other nations to stop Israel.

This is being done precisely because NATO and the US supports Israel and sends them weapons and funding. They value their own interests in the region more highly than the lives of Palestinians. In fact, Israel wouldn't even exist without foreign support.
This conflict will only be resolved when supporting Israel becomes more trouble than it is worth, either because of the political turmoil at home is not worth the benefits, because the money spent on it outweights the profits, or simply because the crumbling empire no longer has the means to support it's vassals.
It's imperative to organize at home and to agitate against Israel if you're an USian, it might not seem like much but the more you pressure your government to stop supporting genocide abroad the closer we are to resolving this conflict.