It should also trouble them to know that Netanyahu helped facilitate the transfer of funds to Hamas. It's not even a secret or rumor, he's said so himself.
If everyone who excused the murder of children because of Hamas was actually consistent about that, Netanyahu would have already been tried and executed a long time ago.
The only conclusion you can draw from that is they think it should be a death sentence to exist in the same city block of anyone who is even suspected of being in Hamas, but it's perfectly okay to help funnel millions and millions of dollars to them.