Marriage is a scam, it's true.
Marx showed how it shovels profit to the bosses by stealing one spouse's labor to maintain the family. This provides the employers, at no cost, the upkeep of the current crop of workers, plus the raising of the next generation. Think of it as original privatization. And this is not even to mention the house of horrors which the patriarchal family has been for women and children over the centuries. Today, the evolution of capitalism itself is destroying the traditional family, mostly by drawing women into the paid workforce.