Probably a good idea to eliminate them as a state.

Whether it’s a good idea to attack the State of Israel is up to the Palestinians, but they have the right to: https://www.un.org/unispal/document/auto-insert-184801/

The General Assembly […] Reaffirms the legitimacy of the struggle of peoples for independence, territorial integrity, national unity and liberation from colonial domination, apartheid and foreign occupation by all available means, including armed struggle