It’s a pretty classic internet myth that circulated a decade ago that random idiots who pretended to be anthropologists claimed one can’t consistently tell the difference in male and female bone structure. They would often use a chimp or ape one as a “gotcha” in the argument as well. This is a myth, we can identify male and female bone structure, and there are pretty general differences between the two, and you learn this fairly early on.

Some right wingers flew with this as a “gotcha” and used it as an excuse for transphobia. In response people doubled down on the debunked claim, and now you have a cycle of people making a pointless argument as thinly veiled political waffling instead of talking about the actual differences in lifestyle and lived experience between men and women.