I believe in God's sovereignty very strongly. It has nothing to do with Calvin's writings or his life. It has to do with the Bible. In fact, the name Calvin turns my stomach for a variety of reasons that are not the subject of this thread.
Having said that, I would never call a devout Arminian or free willer mentally ill. It is a different way of working with Scripture.
I work in an adult day care, and it is a very grueling job. My reason for working there is maybe to make a difference in someone's life. The use of the term "mentally ill" to disparage a particular belief about the Lord is disgraceful to those who believe in sovereignty, and to those who really are afflicted by mental illness.
My idea is that this is started by those who played games in a series of threads some time back that stated mentally ill people are all sinners and out of the will of the Lord. In fact, it was one of my responses to one of those threads that got me my only infraction. I will not be duped into that again.