The “Palestinians” sure are not serious about any “two-state” solution, either. To believe otherwise is to buy into their taqiyya. Taqiyya is a concept and a reality that non-Muslims must bear in mind when reading or listening to the words of Muslims.
To the Western mind, this would be “lying”, and no other term fits. But the Muslim mindset is a sort of two-level thing. One one level, they know damned good and well, that what they say may be perceived as a lie, but for the greater “truth” of Islam, it is but a pleasantry to be exchanged with the Kuffar and Dhimmi, concealing the real objective, which is to support and extend the influence of Islam.
Actually, Israel has compromised again and again since Jimmuh Carter set this fiasco off in the first place. And the Palestinians have taken the lands and other gifts they were given, but never have given anything in return.
Their position still is that they won’t rest happy with a “two-state” solution until Israel is driven into the sea.
And of course the UN, being stuffed full of Muslim countries, supports the Palestinians. Indeed, they have aided and abetted the Muslim terrorists, AKA refugees, for as long as they have existed.