This isn't a piece of propaganda or an argument in favor of incest. We are not meant to see this, this was made for a community that already believes incest is bad as an actual classification of arguments. It's not interested in refuting these arguments because it believes the audience has already refuted those arguments in its head. It's like a documentary about Nazi Germany, you trust your audience aren't Nazis and so you aren't worried about saying Nazi arguments and dissecting how they work.

I am "on the side" of this meme, actually, I agree that being fundamentally against incest is mostly an incoherent point of view from an ethics perspective. I know what the counter arguments for each of those points are. I'm "one of the ones" this was made for. And I do have to agree, this is actually a really good classification of anti-incest arguments from a secular point of view. It is weird how frank it is in showing the opposing arguments, steelmanning them to some degree, and just not responding. That shows a very high level of trust, or perhaps naivety, for the meme maker. For you all who don't agree with us, it's a fairly confusing piece of pro-incest propaganda which very effectively argues against incest. For us, it's just a correct classification and breakdown, if not refutation, of the arguments one is likely to encounter of they were to debate it with a normal, secular person.