When the 'reformation' movement broke out, what they were trying to do was to reform the Catholic church. The problem with this, was that the old RCC could not be reformed, as it was rotten from its inception-her foundation was sand-you can't rebuild a structure built on a bad foundation. Luther never meant to even leave the RCC, but to fix it-which he found couldn't be done.
The problem with 'reformed' churches, is that they each brought a little of mother out with them, which to this day continues to fester in them, and is inexorably drawing them back in.
True Christianity never died, and never needed reforming-people just needed to get out of the false practices, completely, and begin to follow it again.
Sorry, but even Calvin acted like a pope in his personal kingdom, using civil powers to keep the followers in line, punishing severely those who didn't conform to his way of thinking. I have no use for a man's narrow view and neat, tidy doctrines that try to encapsulate the eternal things of God. Calvinism and Arminianism are just man's ways to try and make sense of that which they cannot completely comprehend, and I have little use for either. I'll follow the One that died for me and can take me to heaven.