The old advertisement proclaimed that you don't have to be Jewish to love Levy's Jewish rye bread. Well, surely, you don't have to be a pro-Israel activist to be troubled by the grotesquely unjust treatment of Israel. All it takes is a capacity for moral outrage that things like this are happening today.
Both sides have become very adept at viewing all of what the other does as being provocative and mistrusting. And while that can be true with particular actions, both sides have allowed themselves to fall into the dangerous trap of limiting their understanding of the other by such a myopic approach.