The economy in modern America has already pretty much murdered the family for many Americans. Marriage is seen as the bedrock of the family, and money issues are constantly listed as the #1 reason for divorce, if not then many people get or stay married not out of a need or way to confirm love for another person but to save money on taxes. Communists dont have to kill the superstructural form of the family, the base economic forms will when the proletariat is forced to move away from extended or even close family for work, when the stresses of capital make family a bother to deal with. We already see reports of loneliness and alienation continually increasing.

Perhaps the scariest thought to me about the superstructural issues like this, is that the best way to keep them alive or rejuvenate them would be to instill a communist or socialistic ethic to them. Its the best talking point to give to cultural conservatives, who might otherwise take the "socialism" of the family and keep the capitalist structure. We flirt with fascists in that brief moment.