if a controversial social issue has not yet been litigated what hasn’t happened yet

If a controversial social issue has not yet been litigated, it means that there has been no arguing about it in a court of law. The other options, such as Congress passing a law about it, actual harm caused by the issue, or widespread awareness of the issue, could still occur without the issue being litigated. However, the key aspect of litigation specifically involves legal disputes being presented and argued in court, which has not happened in this scenario.