I don't claim to have all the answers but this seems like the best option that we have without going to war in order to stop the killing.

What we need to do is cut off all relations and trade with Israel and give the other powers in the region the same weapons we gave them,that way without getting any of our people killed we could force Israel to go to the table like a reasonable country and stop this nonsense. This would also give someone other then the most extreme Zionists a chance to come to power in the country. This wouldn't require any extreme actions just our refusing to help in Israel commit any more war crimes.

That really seems like the best option we have at this point.