Syria and Irak have been taken care of by the leaders of the free world, on behalf of those who have more than half of their politicians on their payroll.
The oil monarchies in the region have zero interest in it, Saudi Arabia being the worst offender and the greatest traitor to the Palestian cause. Jordan and Egypt sold themselves out 50 years ago.
The UAE and Bahrain signed the Abraham Accords fully knowing that it would be the death of Palestine, and Saudi Arabia was on its way to, when 10/7 happened.
They don't have the military power, but with their oil and their financial might, they'd have enough leverage. United, they would be a powerful voice and could wreck the West's economy, but the reality is that they don't want it to happen. The rest is just excuses.
All that's left in the region opposing the Israel/US hegemony are Lebanon (understand Hezbollah) and Iran.