Well, facts are different from statistics, above all... But, let's say what you wrote is true. This only shows how blinded the Israeli nationalism is, how patriotism has excluded a critique and self critique view.
I don't know if Israel has a RIGHT to exist. I don't think that these kind of things are decided by right. But anyhow I think everyone should have the right to express himself freely and to life freely. And by anyone I mean you poor european friends, your rich american friends, the poor arabs dying in Gaza or blocked in West Bank, the poor Israelis dying in Israel or fighting here and there and the poor humans in general that have not freedom because of some stupid nationalistic rethoric.
The point, here, is not the military service. It is what a military service means. To me it speaks of a nation still young, endangered, deep into problems because of the interests and the politics of a small élite, able to control the information and the free thought of his citizens with a fake and totalitarian discourse.
If you really believe that you were under attack ever since the first day of Israel's independence, well, this discourse, this rethoric, won. It is through fear and hate that the interests of a few controls the actions of many.
And how could I listen to you talking about Israel's RIGHT to exist while I'm seeing so many violations and illegal actions. If you want that your rights are sustained and could appear true, well, start respecting international laws. Start from not killing 100 palestinian for 1 israeli. When this NAZIST technique will end, then the word right will sound less fake.
If you think that such a military campaign was correct, then, please, go ahead, I don't want to restrict your freedom. But let me say that, in that case, I won't be able to be sad as you get hurt or worse. You won't be an hero, you won't be a freedom fighter. You'll just be a slave to a bigger ideal, which is not by any means connected with Israel, with being a Jew nor with freedom and law.