Arafat was awarded the Nobel Peace Prize for his efforts to make peace in the middle east (as were Shimon Peres and Yitzhak Rabin), not for ceasing his political fight or for giving up his ambitions.
He said: "Peace is in our interest: as only in an atmosphere of just peace shall the Palestinian people achieve their legitimate ambition for independence and sovereignty."
Narges Mohammadi's fight is a peaceful one as well.
I do not disagree that this was a peaceful move, I rather disagree that Yasser Arafat is an example of someone getting the peace prize despite acting against American/Western interest.
The claim that I responded to was essentially that only opponents of anti-Western regimes ever get the Nobel Peace Price. Arafat is a counter example to that.
Arafat's decision to pursue his goals with political means is neither pro- nor anti-Western/Israeli. It was meant to be pro-Palestinian. Hardliners on both sides hated the idea and unfortunately they have prevailed.