In any democratic country worth of this qualifier, an act of protest of a citizen against his/her own country is not consider treason, but a right to dissent with her/his government's position. Would Eli Yishai and his likes strip of citizenship to Gideon Levy for his criticism, or is that consider fair criticism from a fellow citizen? The knesset member should learn the meaning of democracy before accepting his position or before claiming his participation in a democratic state.
Jordan foreign minister says to speak with Kerry on Israel-Palestinian conflict (Reuters)
from the article: Interior Minister seeks to strip Israeli Arab MK of citizenship