Little needs to be said on this one. Pikachu's definition of "pagan" and it's derivation isn't something we need to dispute; yes, the word was synonymous with villagers who remained idolaters after Christianity become predominant in cities.

But there is one enormous error made: Pikachu says that Constantine's conversion in 312 AD gave the Church unlimited power to tax, outlaw, regulate and otherwise suppress competing religions -- a power strongest in the cities. As my associate Roger Pearse has noted, Constantine published the Edict of Milan which legalised Christianity (and all other religions) in 313. State paganism remained the official religion until Theodosius I. Constantine "watched over the heathen worship and protected its rights." He did "suppress divination and magic" but in so doing only mimicked prior pagan emperors. His approach as a whole was sycretistic.