It is a result of history. As it grew in the 300's and 400's aristocrats began to assume positions of power and the link with govt became a part of it. Change may be very difficult to accomplish, but anything is possible with God.
FWIW, I'm pessimistic about that kind of change happening but we can hope.
AMEN! A radical discontinuity by God is always possible. We breathe; therefore we hope.