Because the US is full of Christian zealots who believe that when the Jews manage to rebuild their temple, armageddon happens and they all get to go to Heaven.
They are actively cheering on WWIII and the deaths of billions over a 2000 year old work of fiction. And are neglecting to mention that this Jewish country they all support will be bombed into dust for their messiah to return.
Christian Zionists belong to a death cult and the fact that they have so much influence over an allegedly secular government is gross.