In my party's current campaign I play a cleric of Pharasma (Death/Repose Domains) and one party member has acquired an undead horse as a mount. My cleric has made it perfectly clear that he cannot stand undead creatures. Having come across several, he has shown to be fair in his treatment to them by attempting to relieve them of their curse (by means of deity intervention he managed to cure a case of vampirism) before destroying them.
Then this horse comes along and instantly several party members turn against my cleric and claim that he is being over-zealous in his undead slaying as the horse "isn't going to hurt anyone".
My problem is that clerics of Pharasma are suppose to destroy undead they come across, and the Repose domain says that my cleric views them as a mockery of what they hold dear. So wouldn't allowing an undead horse to not only survive, but be around and actively interacting with it risk angering Pharasma?
So am I in the wrong trying to deal with the horse?