I can see how such a story is against the 'right/racist' narrative as they think race has a major influence on intelligence, but why doesn't it fit the 'left' narrative which seems to categorize humans based on their social class?
It's not against the narrative of the right in general. The US political right likes the narrative of the early 20th century. It's only the Far Right extreme which doesn't like it for going against the idea that race has a major influence on intelligence.
why doesn't it fit the 'left' narrative which seems to categorize humans based on their social class?
Well, for one thing, to accept it is to give credence to IQ and intelligence testing. Once that is done, then you have to give credence to a lot of other inconvenient studies. Also, it's part of a larger picture that supports the idea of assimilation over cultural isolation. It's also pro-military.
It doesn't really matter whether you give credence to IQ testing or not.
If you do: It's clear that african americans have been marginalized, seeing as the results are separate from ethnicity as proven by the earlier study.
If you don't: Square one of your given ideologies.
> It's not against the narrative of the right in general. The US political right likes the narrative of the early 20th century. It's only the Far Right extreme which doesn't like it for going against the idea that race has a major influence on intelligence.
It's against the narrative of the right as their platform is behind almost all of the marginalization of african americans.
Oh yes, it does. It points the finger at whose policies are to blame for the reversal of improving fortunes for certain communities in the US.
If you do: It's clear that african americans have been marginalized, seeing as the results are separate from ethnicity as proven by the earlier study.
If you study immigrant and ethnically/culturally separate communities all around the world and all across history, two clear patterns show through. 1) Often a minority group's leaders keep their group culturally isolated to keep their local power. 2) Economic success of a minority group is linked to the degree of assimilation and integration into economic and cultural life of the surrounding culture.
The pattern across history is often that groups marginalize themselves.
It's against the narrative of the right as their platform is behind almost all of the marginalization of african americans.
Many african americans would disagree.
Contrast that with the republican party, how well are poor whites represented in the party (aside from near-constant lip service)?
ETA: Unless, of course, you come at it from another angle that doesn’t acknowledge the race issues but tries to solve the resulting problems—“schools need funding”, “kids need school lunches”, “careless gentrification is harmful”, &c.
It’s also axiomatic on the left that all cultures are equally effective at raising successful, healthy children. The German study suggests that culture matters, which counters this axiom.
No, it's not. In fact, both results of studies showing such differences and the factors likely producing them are frequent matters of discussion on the left.
> It’s also axiomatic on the left that all cultures are equally effective at raising successful, healthy children.
Also not true, though the left (unlike the right) is unlikely to limit it's consideration of “culture” to a narrow set of values that parents of certain ethnic backgrounds are presumed to have or not have, and consider the sources of culture influences much more broadly than the right does.
> The German study suggests that culture matters,
It is quite consistent with the idea that physical and broad social context matters, and that broad aspects of the physical context to which various groups are selectively subjected, as well as elements of the broad US social context, are particularly harmful to and preserve the disadvantage of various historically disadvantaged groups is actually more widely accepted as established fact on the left than the things you mislabel as axiomatic.
That's because it's an irrelevant classification.
> It’s also axiomatic on the left that all cultures are equally effective at raising successful, healthy children. The German study suggests that culture matters, which counters this axiom.
Assume you would do these tests on Irish Americans in the mid-1900s, or Italian Americans in the late 1900s, and compare to other groupings of people. Assuming similar results:
Would you say the results say anything about Irish or Italian blood or Irish or Italian culture being less intelligent?
Or would you say that the results could be rooted in something closer to economic standing or housing area or a number of other factors?
https://en.wikipedia.org/wiki/Ashkenazi_Jewish_intelligence
However, even the above can just be used to maintain the tinfoil conspiracy theory about jews running the world. So.... you cant get any useful conclusion with this data, even if you use the data as it is (i.e. to say "on average", and never use it to guess a certain person's intelligence based on ethnicity).
Also, the genes responsible for skin color,afaik, has nothing to do with the intelligence of that human. Otherwise, there would literally be a cap on iq for whiter or darker skinned humans. But there is not, any ethnicity can produce stupid individuals and geniuses as well.