It is comparable, we've been comparing the number of people killed by dictators like Saddam Hussein.
You quoted half a million people which was a grossly exaggerated figure, as shown by Vinty.
The true figure could be as low as 250,000.
The true figure of Palestinians killed by Israel is also an estimate, at a published figure of well over 150,000 of just Palestinians and Arabs. We don't know the true figure of civilians killed by Israel as "collateral", Palestinians, Lebanese, Syrian, Egyptians, Jordanians, Germans, Uruguayans, etc.
Then there's the numerous extrajudicial assassinations around the world in Italy, Greece, France, Germany, UAE, Norway, Brazil, Tunisia, Belgium, Malta, numerous assassinations in the West Bank, etc.