Nope, that’s not how the laws are worded. Age of consent has nothing to do with marriage.
The counter to your argument would also be that everyone in every state could now carry concealed handguns with no permits required, because several states allow that.
And unlike marriage law, the constitution does mention gun rights.
If that young person is married in one state, then they are in all states, and the age of consent has nothing to do with that marriage,
As far as how guns got in this thread ,,, I have no idea ... LOL ...