In some states, definitely in the past and perhaps even today though I haven't kept abreast of the law, there were different ages deemed legal for a relationship based on the genders involved. To defend the statistic is to, likely unknowingly, defend the discrimination the laws hold in both structure and application. I am not saying one should discount all cases covered under the law, but it does deserve some context given the sometimes sordid history of the laws.
I only pointed out what defending and using a certain statistic is discriminatory. I made no other arguments, and none directed toward the individual in question or their overall point. Now that you are aware of the discrimination that has historically been encoded into the laws in question, please allow the knowledge to soften the judgement of the behavior of calling that particular statistic into question, specifically when the behavior is saying it is something complex to be discussed and not totally dismissing the entirety of that statistic.
