The crime of the Reformers was in pointing out the errors of the church. Each one of them did so knowing that they risked their lives to espouse their opinions against an unwilling-to-listen church, which ruled almost by compulsion (not unlike Islam of today). These men didn't act on a whim or out of revenge or for any other reason than simply wanting to fix an inherent problem. They were highly educated (by the church!), they wrote multiple volumes on the problems they saw, they tried to fix the church from within. Finally, an intransigent church forced them to break away. These were men of supreme courage and devotion. We would all do well to know the scriptures as they did, and to use that knowledge in the education of others.
What the Reformers did was twofold:
1. Provided necessary correction where error existed (and still does);
2. Brought God's Word to the masses, and thus brought choice... and, in truth, accountability as well.
I ignored this topic earlier. You can call what they did as a break in Christian Unity, but I don't -- it resulted in spreading the gospel to the world.
Yes, the RCC stands on its own.... but it stands apart from the foundational Biblical truths of God's Word which are hidden behind so-called traditions. Heck, I even have to take issue with the use of that very word. We 'traditionally' celebrate Christmas on December 25th. Scripture doesn't indicate this, but doctrinally, it is meaningless. But having important doctrines that flat-out contradict scripture or make up things not present isn't 'tradition'. There's another word for it. Heresy.