You're also right in that people harm their children in all cultures, and it's disgusting and reviled regardless of who does it.
What you've failed to address is:
If a Christian kills their child because of 'demoniacs', which was brought up in this thread, the Church does not accept that.
In all civilized cultures, this behavior is abhorred, in the Muslim world, there is still a faction, large enough to be relevant, group that respects and accepts this practice.
Now, with that having been said, how do you compare the hatred one man shows for the acceptance of a child brutally murdered to the hatred for the 'Jewish Lobby', who, if real, are simply a group that is acting capitalistically, and looking out for their best interest. You know, without brutally killing their own children.