That is a very interesting and well thought out response to the assertion that Jewish and Gentile Christians do not have "different roles" to fulfill here on earth.
But there is one essential piece of this puzzle still missing. I am well aware of the Scriptures that can be interpreted to imply a continuing difference in leadership and teaching roles for men and woman. Is there anything like that concerning the differences between Jewish and Gentile Christians? What role do Jewish Christians fulfill that is different than Gentile Christians?