Also
Polygamy is a sin in your eyes, right?
If so, how can you believe anything else Joseph Smith had to say, since he was so wrong and in such utter sinfulness about his teachings on polygamy?
It would be now. But there are concepts like “malum in se” and “malum prohibitum.” Polygamy is currently prohibited. It will get you excommunicated from the Mormon Church. It has been lawfully practiced in the past, and wasn’t a sin.
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NO, just against the law.