As a former Mormon I find this mildly interesting, but I don't have much hope that large numbers of LDS people will begin to protest against the genocide. The pro-Israel thing is deeply embedded... as in, I'm pretty sure there are an awful lot of LDS people who will see the sacrifice of a million or two Palestinians, even if totally innocent, as a reasonable price to pay for God's Chosen People getting the Land Of The Covenant to usher in the Second Coming.
Even deeper than that: Mormons are mostly herd animals. Dissent has been trained out of them (unless the dissent is authorized by the First Presidency).