These settlements prevent the formation of a Palestinian state. These settlements are a hurdle in the way of peace. There will never be peace while these settlements exist.
Assuming an accurate translation (perhaps a gamble where Reuters interpreters are involved), we now discover where Reuters gets its notion, averred at the top of the video, that "the building of new Jewish homes in the West Bank has long been a stumbling block to peace". You see, the Palestinians say so, and so it is -- for Reuters.
Abu appears not to ponder and Reuters does not question why Jewish communities in the West Bank "prevent the formation of a Palestinian state" while nearly exclusive Arab/Muslim communities throughout Israel -- dozens of them home to hundreds of thousands of Arab "settlers" -- like Umm al-Fahm and Tira did not prevent the formation of a Jewish state (although of course, not for a lack of trying).
Abu also seems unaware -- and Reuters willingly obliges his naivete -- that between 1964 when the Palestine Liberation Organization was founded, and the end of the war in 1967 when Israel liberated the West Bank from Jordanian occupation, there were no Jewish settlements (and no Jews) in the territory and yet there was no call by Yasser Arafat or other Palestinian leaders for a Palestinian state in the West Bank.
There was only this call:
The Arab Palestinian people, expressing themselves by the armed Palestinian revolution, reject all solutions which are substitutes for the total liberation of Palestine and reject all proposals aiming at the liquidation of the Palestinian problem, or its internationalization.
Part V to follow.