If you view the people of Israel as occupiers, you're saying they have no right to exist in Israel today.  You set aside 3,000 years of historical facts and Jewish heritage in the Holy Land.  That would put you on the side of genocide of Jews.  

That puts us back to my original point, if Palestinians would simply let Israel exist, there would be peace.  Israel warns civilians before they bomb a target, Hamas uses their own people as shields.  There is no moral equivalency between the two.