Then if, and that’s only if, all the things said about Calvin are true, and there’s not much reason to think that all of the speculation about him is, then the Calvinists and RCC are one for one.
It is true that all religious institutions and groups of believers have been victimized by men of evil intent. It is no less true today than 500 years ago. Those who rail against today's evil doers while at the same time defending with a perverse piety the evils done 500 years ago are the hypocrites Christ warned us against.
Although I will not go so far as to say that Calvin was the prince of darkness he was certainly and provable a prince of darkness. His sins are at least as great in both scope and scale as those of the perverted men who abused their positions as priests to harm children.
Let him who is without sin throw the first stone.
Not quite, Alexander VI didn’t teach any theology as far as I know, Calvinism is built on Calvin’s theology.