Interesting insight. I used to frequently go to lunch with a Jewish attorney who was very curious about my beliefs. He asked much more insightful questions than most Arminian Christians. If he had come to believe Jesus was the Messiah I have no doubt he would have become a Calvinist because he recognized the sovereign and holy God I attempted to describe.
I have a theory that the primary reason most recoil upon hearing the Doctrines of Grace presented is that in their heart of hearts they know they are true.