Arianism is Pantheistic

"At several points, Athanasius argues that Arianism reduces to pantheism or polytheism.  If the Son participates in the Unoriginate, just like everything else, and yet the Son is called "God," then what difference is there between the nature of the Son and the nature of all other originated things?" - Leithart, Athanasius, p24.

Sloppy Christian thinking often does not carefully defend the deity of Christ.  When this happens, even those who are not Arians begin to blur the distinction between "the art of God in creation" and "God in creation."