That's not saying you can't course correct - but the cost is very high compared to most things.
It's like if two cofounders with equal shares sell their company, they split the money. You wouldn't say one cofounder lost 50% of their assets.
Divorce very strongly favors the female in many ways.
Divorce law is not gender neutral. Custody of kids favors the mother, does it not?
A 50/50 asset split disadvantages men on average because they typically bring more than 50/50 into the marriage.
Meanwhile, custody of children in most jurisdictions is in fact gender neutral, and based on the best interests of the child. However, since more often the mother is the primary caregiver (whether stay-at-home or working full time), courts more often grant custody to the mother.
The first problem would be solved by eliminating gender wage disparities. The second problem would be solved by men providing more of the childcare during the marriage.
I think you'd be hard pressed to find 1 in 10 divorces that "benefit" the man more than the woman. Just my intuition, I don't have any statistics on that. I have a really hard time calling that gender neutral.
And good luck trying to have kids without a woman being involved.
Marriage - I don't think it's highly reversible, see my sibling comment.