It is impossible to "dismantle the Zionist government of Israel". "Zionist" is one of those words like "liberal;" that is, it has been redefined into a meaning that those who believe in it don't recognize. Zionism means nothing more, or less, than the concept that the Jewish people have a right to a physical homeland, and is therefore integral to the existance of the nation of Israel. Oppression of the Muslem and Arab population of Israel itself, and that of the currently and formerly occupied territories (to the extent that it exists, and there are many different opinions on this) is not part of Zionism, nor is expropriation of occupied and unoccupied land belonging to (or squatted upon) by Muslem, Christian, Druz or Jewish Arabs. This (an official Israeli site) explains Zionism as most Jews understand it.