SDHD: "1) Israel withdrew all citizens, military, and governmental authority over gaza." The disengagement plan clearly said that the citizens were being "withdrawn", but the IDF was being "deployed" to the border. That difference was there for a reason. SDHD: "2) Authority was turned over to the Palestinians." The disengagement plan was UNILATERAL i.e. no authority was handed over to anybody. SDHD: "3) Hamas increased rocket attacks against Israel." Irrelevent to the question of wether Israel is still the occupying power. SDHD: "4) Israel blockaded gaza." IF Israel is still the occupying power THEN it can not legally blockade occupied territory. You start from an ASSUMPTION i.e. disengagement ended the occupation. I am pointing out that your ASSUMPTION is wrong i.e. disengagement did not end Israel's role as the occupying power; it merely represented a change in the METHOD by which Israel chose to exercise its (continued) authority over Gaza.
10 arrested at Israeli Arab protest in Ramle (Haaretz)
from the article: Four Gaza factions halt rocket fire, in bow to Hamas