Except that at the time, most of those readings were done in Latin. How many of the common people during the middle ages were well versed in Latin?

It also supposes that they got the entirety of the scripture in order to evaluate truth. They most certainly did not.

It presumes that the readings were accurate and authentic. Again, they most certainly were not. Any time you have a social situation where an oppressed populace need to be controlled, you've had cherry picking and misrepresentations of biblical passages to get them to accept their suffering in exchange for a promise of a reward after death. That's as true for the peasant serfs of the middle ages as it is for African Americans held as slaves in the US, women, and any of the assimilated cultures around the world.

The minute Christianity became the state religion of Rome it lost it's way and stopped being the hope for the masses as Jesus wanted. Jesus wanted to reject authoritarian thought putting one person against another. He realized that only by seeing all people as brothers and sisters, and therefore caring for one's neighbors, would human suffering end. He really was a radical guy, but hardly the only one throughout history to come to that conclusion and have the means and charisma to pursue it. Like all the others, he was eventually martyred for it. It a sick sort of irony that a religion sprung up around him and his life designed to do the one thing he wanted to end. Oppression of fellow human beings.