Two things:
I’ll talk about the second point first, because if you look at the point reasonably. It dulls or mutes the importance of the first part.
The second point illustrates two things: Margaret Mead once said in paraphrase <the worst thing you can do in studying a culture, especially one in the past, is to try and impose your moral framework onto someone else’s culture>. Then, an example of what I call “presentism”, which is the “gifting” of knowledge or ideas that we have or know now to people, societies, and cultures of the past or present.
Specifically, for the second assertion to be true requires that the laws and customs regarding the “age of consent” are both universal and apply to all people, and have never shifted or changed at any point in historical time.
In Nigeria (now), the “age of consent” is 11-years-old.
The lowest age in the US (with restrictions) is 13, in 9 states.
As to the Laws of Kashrut, religions, even ones that are societal more than they are scriptural, do have the right to put the goalposts where they see fit. As to those rules being “more important,” I think quite a few Rabbis and The Sanhedren would give you a few arguments on that point.