[Not if
(a) you live in Kolob Heights, where Lds say their eternal polygamists are "raising up seed"; or
(b) you're part the entourage welcoming the Mormon jesus back...Lds apostle Bruce McConkie said in his "Mormon Doctrine" book that the "holy practice" of earthly polygamy would be re-instituted when the Mormon jesus returns]
Polygamy is not something that LDS Mormons ever want to come back.
I'm sorry, but you are calling Lds apostle Bruce R. McConkie a false prophet? (see "B" above) I mean his forecast on polygamy is sold in most Lds bookstores; and the Lds church has owned McConkie's book publishing company for the past decade as its undergone reprints.
For those types you have to look at sects that have split from the LDS church.
I reference (a) and (b) above...all depends if you can "Hie to Kolob" (a Mormon hymn in the Lds hymnbook) or if you'll be part of the favored polygamists when the Lds jesus returns.
Sigh...I guess you know better than an individual who has been a faithful church going member of the LDS church for his entire life. (Granted only 38 years)
All I can do is encourage you to read, ponder, and pray. That is the advice given to all members of the LDS church since they are old enough to be baptized.
It is easy to look at 150 years of talks and speeches given by leaders of the church and find the most controversial things you like. I could point out that McConkie was never the leader of the church. I could point out that he speaks of after the return of Christ. The former has its debatable points, in the later, when Christ returns we can both take up the question with him. Either way, its not worth arguing about at this time.
For me, one wife is plenty, and often too much. Seriously, why nitpick. Polygamy is far more important to people like you than to any mormon I know.