In case you’re still lost as to what the heck is going on, a Scientology Run is when people film themselves charging into a Church of Scientology building to see how far they can get before being caught and booted out. It’s a notoriously secretive religion, so it turns the whole place into an action-movie set piece where the protagonist is trying to infiltrate a compound while fending off its legion of foot soldiers, clad in terrifying white button-ups with black vests.
Control. Generally speaking a religion and a cult are differentiated by how much they demand or control in members lives. Scientology, Mormons, and even a lot of Southern Baptists are generally cults or really cult like. For comparison Anglicans, Quakers, and progressive Neo-Pagans are on average not cults even if they are insane and playing with the dynamics at times.
So christianity was more of a cult in medieval times?
Depended on region and what period of the medieval era, for example Iceland around 1000 absolutely not, but in France during the crusades absolutely was. Remember the medieval era lasted about a thousand years and was spread across Europe so there’s lots of nuance.
Plenty of sects cut you off still. Like Catholics.
The hallmarks of cults is: separation from friends or family, a person or ruling body that delivers the one and true version, punishment for rule breaking, and a difficulty separating. Also, it almost always devolves into sex slavery and/or arranged unions.
Those things give you control of course, but they are the basic guidelines of cult like behaviour.