I fail to see how it's filled with racism. If you're referring to the theory that it's immigrants and poor people reproducing more, you must not have read the next paragraph before you got angry about it:
>One potential explanation was quasi-eugenic. As in the movie “Idiocracy,” it was suggested that average intelligence is being pulled down because lower-IQ families are having more children ("dysgenic fertility" is the technical term). Alternatively, widening immigration might be bringing less-intelligent newcomers to societies with otherwise higher IQs.
>However, a 2018 study of Norway has punctured these theories by showing that IQs are dropping not just across societies but within families.
The article (and study) make it clear that IQs are dropping from parent to child, even.
>One potential explanation was quasi-eugenic. As in the movie “Idiocracy,” it was suggested that average intelligence is being pulled down because lower-IQ families are having more children ("dysgenic fertility" is the technical term). Alternatively, widening immigration might be bringing less-intelligent newcomers to societies with otherwise higher IQs.
>However, a 2018 study of Norway has punctured these theories by showing that IQs are dropping not just across societies but within families.
The article (and study) make it clear that IQs are dropping from parent to child, even.