Israel has done quite enough all by itself to delegitimize itself without any help from others. It's very illegitimate occupation, its illegitimate settlements, its illegitimate Cast lead operation, all these things do it quite well for Israel. It was once a Sate with a moral soul, but I am afraid that is no longer the case.
47 killed in clashes between ISIS, Syrian rebels near Turkey border, monitor says (Reuters)
from the article: Think tank: Israel faces global delegitimization campaign