Hmm, too late to edit, but I should clarify: if Israel ever used rape as a war weapon, that would be inexcusable (rape is obviously always inexcusable), and it would not make Hamas rape of Israeli women more excusable.
Honestly, this is the kind of thing you end up defending once you start saying that targeting civilians is sometimes OK. You're saying that there are times when it's sort of all right to sodomise women so they bleed madly and drag them to cars by their hair, to abduct people, to murder children, to open fire in a music festival. Pretzel and whatabout and deflect all you like; that is what you are saying. And they are never OK. Not even if the other side did do it first.
And if targeting civilians is OK when you can't target military, how can targeting military not be OK?
And to present it as some sort of viable alternative when the terrorists doing it have always had the option instead to get round the table and say "OK, we will accept your country and stop attacking it, and in return we want an independent state"....
Accept that targeting civilians is never justifiable and you don't have to worry about how you'll get round all the logical conclusions to this. It actually gives more weight to any criticism of Netanyahu because you've got protecting civilians as your top and indisputable priority.