In view of the accepted meaning of the term “doctrine”, your statement, “It’s a measure of having doctrine. Pagans didn’t.”, makes absolutely no sense whatsoever. None.
How do you understand “doctrine”? Communists have it — but they’re post-Christian and have heard of the ideas of orthodoxy and heresy and applied them to their “philosophy”, so you have Bolsheviks and Mensheviks and Trotskyites and Maoists and Stalinists, all (I think) claiming the mantle of Marx. There simply was nothing like that in paganism.