>>24857006
The reason for "why so few pagan rebellions" is because, at least at first, when the christians came to power, they didn't crack down too hard on their largely pagan citizens, to whom the emperor only worshipping one god was weird, but had some precedent in things like the Emperor having a primary patron god he focused his main devotion to, so as long as he wasn't stopping the rest of the empire from doing what it needed to, people didn't mind as much as they could have and the unrest from it stayed manageable.
Similarly, since most of the various temples, cults, and so on were far less aggressive and united about conversion, the numbers of christians kept growing, usually as much for political reasons as anything else, particularly after the fracturing of the empire and the validation of split loyalties to the citizens [Split Imperial authority, not even once, folks. Right up there with lead, the Pope, and the shift from imperial absorption to resource extraction for causes of the imperial collapse].
So by the time it got to the point that pagans were actually being persecuted enough to incite rebellion just by itself, rather than it being one of multiple, usually more relevant, motivations, there just weren't enough of them. Their entire root theology hadn't evolved to deal with an actively hostile on theological grounds faith actively trying to convert people not culturally but religiously and that specific form of hostility and thus ideological warfare was anathema to most of them who's prior issues with christians had a lot more to do with them being an insane death cult openly professing to be undermining the societal institutions of the empire than the god they worshipped specifically.