Palestinian Statehood

I previously posted about the intent of the Palestinians to seek recognition from the UN as a state. 

It appears that they will be moving forward with that plan this week.  The United States has said it will veto acceptance of Palestine in the security counsel, which will then leave the Palestinians with the sole option of going to the general assembly to be recognized as a "observer state."  That will allow them to bring Israel before international tribunals to challenge Israeli actions, such as building settlements on what would then be recognized as Palestinian land.

I am deeply disturbed by the US and Israeli positions regarding the Palestinians actions.  Repeatedly, they have both referred to the Palestinian's intent as "unilateral action."  How can going to the UN, which has 193 member states, be considered "unilateral"?  To be accepted as an observer state, the Palestinians would need 2/3 approval from the general assembly -- 129 countries.  The time has come for this to happen.

Essentially, the Palestinians are looking to have a state which is enfranchised and legitimate - how can that be bad.  In the future, if Palestinians continue to lob rockets at Israel, Israel can declare war and seek to legitimately end such state aggression - how is that bad?

Somebody please tell me why the Palestinian's should not have a state?