The polygamists and the non-polygamists

The non-polygamists think that the new and everlasting covenant in D&C 132 is negotiable, and can be altered and man will still obtain the blessings.
The polygamists think that whether polygamy is righteous or not is determined by whether they have the authority.
Both groups read Jacob 2 and seem to think that it is because of lack of authorization that Jacob says “Ye have broken the hearts of your tender wives, and lost the confidence of your children, because of your bad examples before them; and the sobbings of their hearts ascend up to God against you.”

But no, Jacob related exactly what the people had done, just as the Lord stated. Whether polygamy had been authorized or not, the Nephites had “broken the hearts of their tender wives, and lost the confidence of their children, and because of their bad examples before their wives and children, the sobbings of their hearts ascend up to God against you.”
Breaking the hearts of their wives and losing the confidence of their children and their sobbings ascending to God against their husbands and fathers had nothing to do with whether polygamy was authorized of God or not. The Lord himself is plain about this, when he says “For they shall not lead away captive the daughters of my people because of their tenderness, save I shall visit them with a sore curse, even unto destruction; for they shall not commit whoredoms, like unto them of old, saith the Lord of Hosts”. Thus polygamy may be authorized, and yet people may curse themselves with it, even to destruction.

The polygamists should just forget about needing authority for polygamy for a while.
They should instead get to know their own hearts, and what they themselves each love.
You can only build polygamy that God will smile on, no matter what your authority, when people know their own hearts, and when your society prizes the freedom of its members. But a society built on modern consecration is going to be one that confuses spirituality with oppression by priestly authority, which is pure poison for polygamy. Joseph Smith commanded that consecration not be done until he returned and restored it, and hence where you find modern consecration, that will be the last place where people have learned to separate sacrfices that God accepts from mere priestly oppression, or to know their own hearts and the perfect liberty of the gospel.
If people would live to always have the spirit of the Lord then they would both know their own hearts and also truly love and prize freedom, and in time they would find themselves organized just as they were when the Father organized the human family in the beginning.