Laws against porn, prostitution, polygamy, women trafficking, and contract marriage are not mainly there to protect women, or morality, or child's interest, or even God's will. It's simply there to protect parasites from extinction. Those laws are ...
there to protect those with less attractive offers by exterminating those who do. That one is not surprising. That is typical for any law against consensual acts, like anti smuggling laws, tariffs, etc. The same goes for child support laws and alimony, curiously set proportional to man's income. And that's just the beginning. The mass slaughter of capitalists, scholars, and rich minorities are but a few samples of the same traits. Too many naive rich males are languishing in a lifetime of marriage or alimony hell. Those who don't understand gene pool survival games are always at risk of extermination unless they go extinct first through more "moderate" means.