I am familiar with this video. I've seen either this video, or a video very similar to it.
Originally, the one that I saw, was used as an "anti-settler" "anti-occupation" propaganda clip showing how we Jews "treat" the fakestinians.
They fail to give the context that member(s) of the woman's family were murdered by arab nazi terror attacks. And they also do not explain that the arab was trying to get out of its cage. This Jewish hero puts the arab scum in her place. How dare she harass a grieving Jewish mother like this and endanger the Jewish community of hevron?
I think this might be a different video with the same woman, because he she says sharmuta very calmly, I seem to remember a video with this woman where she screams it at the arab!