Not really clear what you mean by "logically" fallacious. Ad hom can be relevant when there's a relationship between the conclusion of an argument and the person (or entity, I guess) in question.
No.
If the topic **is** the person, then attacking the person is not Ad Hominem.
Ad Hominem is when the person is attacked **in place** of the argument, but when the argument is the person, then attacking the person is logically valid (i.e. not Ad Hominem).
I think by now pretty much everyone is reasonably aware of scientific racism arguments
I don't know anything about "scientific racism".
I'm arguing in favor of race realism, not "scientific racism" (whatever that is).
which is pretty much what's being advanced in the blog
It's not a blog. It's a website positing dozens of heavily sourced articles debunking commonly argued shitlib narratives. This is very different from an online journal wherein someone writes about their feelings/the trip they had for the day.
though there are clear missing logical steps here and there where the advanced conclusion simply defaults to racist one.
For example, in their article showing that genes coding for some brain development have higher interracial variance than other genes, this is regarded as a clear mechanism for interracial IQ variance. Yet, no evidence is presented that those genes have any actual impact on IQ.
So this is the common 'find the genes' argument that if we accepted, would wipe out most of biology, anthropology and many other science fields that also haven't 'found the genes' for absolutely everything. That means there would be not biological difference between dolphins, spiders, humans, chimpanzees etc. -- a truly insane conclusion. You're essentially attempting to move the goalposts to levels that are too hard for any biology-based field to meet.
'Find the genes' isn't how these fields determine their answers, **and** we don't need to 'find the genes' to determine that there is biological difference.
Also, in the existence of race article, a definition for race is advanced which is presented as self-evident because that's "obviously" what it is. I'm afraid it's not so obvious, and if we use that advanced definition the categories for race don't line up with Ryan and Sean's categories at all because a lot more groups of people (e.g. Okinawan, Nordic) would satisfy the definition.
Yeah so race is a social construct. We get to determine how many races we want to formally recognize. Obviously, everyone is different at the genetic level, and so we need to divide people into groups before we get to that level, otherwise we don't have groups. We don't get to determine who goes in what category (genetics does that), but we get to determine if we want 3 super broad races (African, European, Asian), or 100 human races (accounting for the races you mentioned), or some other number. So, their definition is just fine.
Questions of causes of trends within identified groups are difficult to answer. For me, confidence in conclusions happens solemnly and reluctantly, like when you're faced with irrefutable evidence that someone you liked and trusted has betrayed you. The bloggers appear passionate and biased about this topic. It comes across as tribalist advocacy rather than something academic.
And back to the Ad hom lol.
OK. Lets talk about the existence of race argument. Since I'm already reasonably familiar with it, it's not that much work for me to talk about it. Without making any counter-case, I will speak strictly as to why the argument isn't persuasive.
First, none of the links to the studies on questionnaires work. They are all broken links. For that reason, all that evidence can be disregarded.
Which ones did you need to see that would help you believe that race is real?
Second, the argument is heavily based on genetics. Yet, concepts of race have existed long before genetics ever did. If we're going to try to understand what race is, then we should be looking at when and how the notion originated and how the idea has been carried forward, at least from a linguistic standpoint. So, focusing on genetics as a starting point seems a bit misplaced.
Genetics is how we currently prove that race exists -- no misplacement here. You could argue that in the past, race wasn't proven to exist. I don't see why we need to prove that race was proven to exist before. There's a study that showed race matched a person's self-identified race nearly 100% of the time, and I guess I could re-find it if you're desperate to see it, but your argument here is really besides the point.
Further, the genetic evidence being presented doesn't justify the purported races advanced on the site. Populations that have been geographically separated for long periods of time are genetically distinguishable through testing, just as black, white and asian are. So, this test he is presenting - It can also be done for groups that aren't considered races. Ancestry tests (e.g. "23 and me") have become big business these days.
Yeah if you want to find even more biological divisions (and then call them races), you could do that. Jorde (2000) did the K=44 thing. If you set a sorting computer to find 1000 biologically different human groups, and you gave the computer sufficient SNP/loci/genetic markers, you could end up with 1000 human races. Obviously, the more groups you have, the less the genetic division between them, and so at a point, there's little reason to continue to sub-divide humans any further, even though you could.
The purported races on the site are used because they're generally accepted worldwide. If you can make an argument as to why we need to further sub-divide Bantus or Australian Aboriginies into smaller groups, then feel free to make that argument.
I was making a subtle point in a humorous way. Ofc nobody is going to agree to that. It would be too great a sacrifice for the benefit of their race, or country or whatever. Sure, my people would be better off (probably) if everyone agreed to some optimal polygamous mating system. But I'm not going to do that because I'm going to put my interests ahead of my people's. Ah, selfishness when the interests of your people and your own conflict. Perhaps I want you to see that when you are doing what is best for your people, it can be a "cuck move", as you say. The only people when it's really not are close family, I think.
Alright lol.