nonresponsive.
do you have a revelation or not?
Of course not, there's no such thing. What you have is Brigham Young claiming to have a revelation. Mormons here deny that it really was a revelation. And what I say is, if you can't trust your prophet when he says he speaks as a prophet, what can you trust them for? That's how we got into people saying they had their own revelations, so they didn't need to rely on the prophets.
So, I guess if you want to say the previous prophets, going back to Brigham Young, were not speaking from revelation, then you've got some other problems. Like, were they liars, or just really mistaken?
Brigham Young says he speaks as a prophet in the name of Jesus Christ. Every church utterance afterward confirms and is consistent with that, and traces it to doctrine. (the curse of Ham.) The First Presidency says that it is and has been doctrine.
So, was Brigham Young mistaken or lying? Was every prophet since mistaken? Was the church leadership for 130 years mistaken? Was the First Presidency mistaken? Is the group that you believe is charged by God with responsibility for administering his church on earth doing it wrong? You tell me.