First of all, you need thicker skin. Second of all, I equally condemn those Christians and Catholics who vote for Obama, and especially black Christians. Third, as a Christian, I have been a 100% supporter of Israel- something I would expect from all Jews.
My skin is thick enough. Why would you "expect" Jews" to 100% support Israel? A little stereotyping? Do you think your class of Christians 100% support Israel? Christians have degrees of belief in various doctrines, Maybe your class does 100% but another maybe 30%. I guess I should just lump all Christians together though and say because 100% don't, then damn them Christians.
Secondly, you support Israel, I hope, not because Jews, or Bhuddists, or your fellow Christians support Israel, but because it is the right thing to do, historically and strategically.