But seriously, I've seen that claim previously, but never pointing to original source (unless the article was deleted?). I didn't carefully read the articles you provided, so sorry if it is in there somewhere.
Here you go[0].
Out of the links I shared[parent], the former link takes a deep dive into Quillette authors (one of whom wrote the article I cite below), the latter delves into the actual arguments they make in advancement of "neophrenology".
To reiterate my initial comment (I am not here to make a value judgement on phrenology), this does not seem like a publication the OP would like to submit to.
:EDIT: minor clarifications
You have a point that OP might not want to submit there, guilt by association is all the rage nowadays. I mean they are currently trying to cancel Chomsky for signing an open letter on freedom of speech, just because some other people also signed it. This is literally Hitler liked pippies situation...
To my initial point, value-arguments aside(I’m certainly not going to convince you), does an African developer want to seek out Quilette to publish?
HN downvotes me because Claire Lehmann is a Paul Graham darling, but the only thing "Libertarian" about Quilette is the fact they bypass violation of the NAP with the argument the black people are either (A)not people or (B)"less than" people.
I don't speak for HN, but I can speak to why I personally downvoted you. I downvoted you because of the hostility and passive-aggressiveness, the scare quotes and browbeating of your respondent. I think it's reasonable to discourage that sort of behavior, because it's one of the leading causes of long term forum degradation.