The Islamic states will never allow a Palestinian state as the Palestinians are more useful as proxy terrorists.  Besides, the Palestinians are controlled completely by Hamas who are trained, armed, funded, and controlled by Iran. The two state solution is propaganda left over from the Clinton Administration rejected by Arafat.   The Palestinians, and their sponsors, the Islamic states have publicly stated  Israel has no right to exist, and they are dedicated to the total destruction of Israel and the genocide of every Jewish man, woman, and child. 
So why do Americans and other countries pursue this insane two state policy?  Antisemitism maybe?