Christianphobe 

A person suffering from an irrational fear of people of the Christian faith

The Priest accused his critic of being a Christianphobe.

Christianphobe by 66tornadoes December 11, 2016

christianophobia 

: irrational fear of, aversion to, or discrimination against Christianity or Christians
— Chri·stian·o·pho·bic adjective

Many actors in Hollywood with religious beliefs are compelled to hide them because of rampant Christianophobia in Hollywood social circles.

christianophobia by HonestGuy January 24, 2015

christmaphobe 

someone who hates and is scared of anything christmas related, yes thats right.. no un-wrapping presents, singing carols or xmas specials on tv for the christmaphobes!

oh dear, just look at that christmaphobe sitting alone in the window.

christmaphobe by babybelle December 24, 2009