FFXIV has copied nothing from WoW imo. However, it has general similarities with other MMOs that lot of the MMO games share. In this day and age, it's not possible to make completely unique MMO, but sharing similarities with other games doesn't make it clone or copy of any game.

This is a matter of opinion and everyone sees this in their own way, it's useless to try to push your opinion onto others. If you think that FFXIV is a WoW clone, you're free to do so but just accept the fact that other people might disagree with you.