Is the most recent thread I believe.
Lots of concerns that it can be used to force women into subservient positions, especially in societies that strongly restrict female education and exposure to non-societal information, such as various Mormon subsects.
A secondary issue is economic, in that for certain individuals who already believe marriage is primarily (or entirely) economic in nature, you’d end up with those with assets and standing having a disproportionate number of the women, which leaves a large number of angry, young males with fewer options, which doesn’t lead to safe or positive images towards women either.