The point I wish to advance to you is that Final Fantasy Tactics is anything but anti-Christian. The crux of this argument is that Ramza Beoulve is in fact Jesus Christ. Now, obviously not every aspect is a 1:1 comparison, but I think that the points line up nicely enough to make a compelling argument.
Point #1: Like Jesus, Ramza fulfilled the messianic prophecies of his people. If you remember, The Zodiac Brave Story required that a hero emerge, gather 12 braves to wield the Zodiac Stones, and do battle with a demon king. By the time Ramza defeats Ultima, he wields the significant number of 13 Zodiac Stones, has gathered wielders, and slays Ultima who, it should be noted, is in the guise of a demon king.
Point #2 is connected to number 1. Ramza, like Jesus, gathers 12 key followers, in addition to others. They are Mustadio, Agrias, Orlandeau, Meliadoul, Rapha, Malach, Beowulf, Reis, Alicia, Lavian, Ladd and Count Orlandeau's adopted son Orran. Other characters may be substituted or treated as the likes of Lazarus, Mary, Martha, etc. These key characters you acquire during the plot (aside from Orran, who in this case is Simon Peter, recording Ramza's life, leaving his works for later generations, and seeing Ramza after his "death".) are Ramza's Zodiac Braves.
Point #3, when Ramza is present the Zodiac Stones perform actual miracles. Not the "turn you into a demon" kind, but actual miracles. Malach is raised from death, Reis is healed of her "sickness," etc.
Point #4, Ramza fights the prevailing religious order of his day and is branded an enemy of it. Jesus spent a lot of time dealing with Pharisees and Saducees and was ultimately marked for death by them. Ramza spends his time fighting the Glabados, and ultimately they try to kill him.
That's all I really have on that side of it, but I'd like to add that after Glabados' lies are exposed to him and after Ramza loses his faith in them, then he sees miracles.
This isn't really meant to be stupid preachy or anything, just that I felt that it would be nice to turn the established interpretation of FFT on its head and show how the game's writing is good enough to allow for entirely opposing interpretations.