“not accept the legitimacy of the Israeli government”
Those who cannot accept the State of Israel as a Fait Accompli are mechuyav (obligated) to move immediately to a highly insular Orthodox community outside of Israel.
A major factor in the survival of Torah Judaism has been the acceptance of the reality of the government in power and then negotiating the best possible terms to insure survival of the Torah community.
EarlyhHistorical examples are: Bavel, Alexander the Great, Hordus, Rome