"The same as palestininians are doing in Israel." Those Palestinians are "Israelis", and they are living "in Israel" - as they should. The Palestinians "in the West Bank" are "Palestinians", living "in Palestine" - as they should. The settlers are "Israelis", living "outside Israel" - quite illegally. His question is therefore as valid as your response is vapid i.e. in that comparison the odd-one-out is definitely "the settler".
Riot police line up as fresh migrant protests erupt at Budapest railway station (Reuters)