Just because one side is disadvantaged and losing doesn't mean they deserve your support. Those women and children are dying because Hamas is sheltering among them. If you really want the carnage to stop, you should be pushing for Hamas' complete surrender and the return of hostages. Otherwise, Israel is just going to keep killing. Is it sad? Is it unjust? Sure, I'd agree with you there. But it's also a war, and people die in wars. How many German civilians were killed by American/British bomb raids in 1945? How many Japanese civilians were killed when atomic bombs were dropped on them? Unfortunately, war is messy and lots of people die
Between 300,000–600,000 German civilians and over 200,000 Japanese civilians were killed by allied bombing during the Second World War, most as a result of raids intentionally targeted against civilians themselves.