Yes the argument isn't about consciously thinking of the possibility that your father isn't your biological father. It's about how that possibility has affected human culture and biology through biological and cultural evolution. Of course this line of thought is not meant for ones who think like 'love is magical and comes from God' or whatever. Not that I'm saying that you think that. Also it doesn't mean that I support some more extreme vile things that people rationalize with similar arguments. Anyway, that's why in my original comment I was saying that the article was troll-sounding. It's because they didn't even mention the existence of these other obvious ideas, not even to say how they are wrong, if they think they are wrong.
For example the one saying "thank you for your service" might think I'm doing a dog whistle and they are answering with another dog whistle thinking I support them when they make comments like
https://news.ycombinator.com/item?id=35766066 "Why does the lead photo prominently feature a “racism is a sin” sign and the article immediately mentions PoC victims in Oakland? Isn’t the vast majority of PoC victimhood in Oakland intraracial? Not many Klansmen walking around Oakland. Annoying race baiting from NPR."
but I don't support those kind of comments.
I don’t really care what you support, though it is a bit odd that you would dig through someone’s comment history based on a one line post which I don’t think actually had anything to do with your perceived potential dog whistle. While we’re on the topic though, I’m curious what it is about the comment you quoted that you don’t support?