It seems a lot of the commenters here are missing the point. Rather than squabble over the history of Hebron, realize that Israel is engaged in a very undemocratic oppression of non-Jewish Palestinians. if you're so worried about maintaining the character of Israel as Jewish and democratic, you must first fix the occupation, not enact loyalty oaths that limit people's freedom of thought and identity.
Western-backed Syrian rebels say kill foreign Islamic State (Reuters)
from the article: I am not declaring loyalty