No, writes Shmuel Even. Ten years after Israel evacuated troops and civilians from Gaza, the area remains a source of terror attacks, and Israel continues to be condemned for defending itself (article begins on p. 75):
The withdrawal from the Gaza Strip created a new reality that contributed to the Hamas takeover, a steep rise in weapons smuggling, the strengthening of terrorism, and the ensuing cycle of escalation. [T]he terrorism in the West Bank (and from there to Israel) can serve as a partial standard for comparison, [since no disengagement took place there]. The West Bank saw a steep drop in the number of terrorist attacks and Israeli casualties, following the security measures taken [there] and the end of the intifada. . . . [By contrast], the force of terrorism from Gaza and [Israeli involvement in] military operations intensified.
Read more on Institute for National Security Studies: http://www.inss.org.il/uploadImages/systemFiles/adkan18_2ENG_final.pdf