Temporal ordering - Israel/Zionists occupied the land first, and then Palestinians started firing rockets.
Israel cannot say that the reason they occupied Palestine was because Palestinians started to fire rockets, if my premise was correct.
Unfortunately, a vast majority of Jews who fail to recognize the vast human injustices being perpetrated in Palestine feel that anyone who speaks out against the inhumane actions of Israel simply "hates" Israel, and since such a feeling is obviously not justified, everything they say is irrational and exaggerated. Hence, the person above who I am assuming is Jewish, or part Jewish, since he/she is the subject of propaganda such as this (if anyone speaks out against Israel's actions, they hate Israel - hating Israel is not right, therefore they are irrational, do not believe anything they say or find any sense in their arguments). A skewed interpretation of world views is also achieved - the vast majority of the world feels that Palestine is an injustice perpetrated by Israel, however, many a Jew you will meet who feels that public opinion is in his/her favor, and that most people actually feel that Palestinians deserve what they get from the IDF.