Proof that Mitt ever “worshipped a doctrine”?
People worship deities. It seems to me you mean to say that Mitt assented to the doctrine, but I’d like to see any proof he did even that. Someone had to be disagreeing, it wasn’t just a fluke of happenstance that LDS officially dropped it in 1978. That’s a whole lot longer ago than Obama sat listening to “God damn America.”
The ‘revelation’ to allow blacks have the priesthood after those OUTSIDE the church caused flaps, including not competeing with BYU in college sports. Also, there was a lawsuit against the LDS church filed and LDS records were supposed. The LDS church almost always backs down when lawyers are involved. Right after the subpenas were issued, the ‘revelation’ came and the case was either dropped or settled out of court.
There really isn’t any evidence of LDS disagreeing with the doctrine and there is a video of even the Osmonds saying just a few months earlier that blacks not having the priesthood was the ‘will of God’ which is how most LDS thought of it.