There are probably people who support the existence of Israel without supporting what Bibi and his government have done. Opposition politicians in Israel, for example.
Surely in any country there will be people (such as opposition politicians and activists) who oppose the current government's actions, without wanting the state itself to be dissolved. Even in very authoritarian countries like North Korea there might be such people, although of course they would have to keep their views private, due to near-certain persecution otherwise.