Are you now going to make an argument of the form "because the government should prevent 8 year olds from marrying it should also do [fill in the blank with unrelated related thing ]" or was this just pointless pedantry?
Hey, since the government should prevent 8 year olds from marrying it should also nuke China?
I am making an argument of the form 'because the government should prevent 8 year olds from marrying it is wrong to argue that "it can tell people who they can marry, it should not"'.
Pointing out that your entire statement is completely wrong is not pedantry.
If you want to withdraw your incorrect and rather foolish claim in the light of an example showing it to be deeply flawed, then just do so. Don't double down on your error by claiming that pointing it out as erroneous is 'pedantry'.
It's the fact that it's an entirely irrelevant nitpick that has nothing to do with the essence of my point that makes it pedantry.
The comment was not intended to be legalistically precise. You achieve no great victory by correcting it.