Come on. Try harder. This rebuttal is practically in the abstract you cited.
But this is how it works. It takes virtually no effort to paste a citation to underpowered research studies, but a lot of effort to rebut those citations, which serve as appeals to authority in discussions. This works to create the impression that "HBD" is far more seriously scientific than it actually is.
I'm especially amused by the fact that you tried to deploy this clever switcheroo after having your source shot down, and without acknowledging that fact.
My advice is: just give up on the argument. People are people.
That, along with your characterization of my response as a "rhetorical strategy", makes it quite clear you don't have any interest in engaging in the topic critically.
To anyone reading, I encourage you to open the study, Ctrl-F for tptacek's "7%". Confirm for yourself whether or not he's being honest, and consider what that implies about our respective positions.
A total of 1345 people received emails.
The questions about ethnic differences were answered by 71 respondents.
The actual rate was 5%.
I regret the error.
The abstract itself cites the low response rate. It's a stated problem with the survey. How are you not familiar with the document you brought to the debate?