Social security for the clergy

After becoming an ordained minister in 2000, I accepted a full-time position for a church in San Diego. At that time, my clergy tax advisor suggested that I opt out of paying Social Security. I was told that this was the ethical & typical thing to do as clergy. What I was not advised was that this choice would be irrevocable except by a literal act of Congress. I didn't learn this till years later when I was hired by a different church. I want to be able to resume payroll deductions and become eligible for Social Security when the time comes. I want this petition to also support other ministers who may have also made this erroneous choice.