I hate to be a downer, but "it's not fair" doesn't really matter at this point. Trump continues to gain, and he's babbling incoherently most days and being quite clear that he plans to be a fascist from day one. Whether it's fair or not, there's is a huge double standard. If Harris does anything wrong she loses support. Trump daily explains gleefully how he's going to take away civil rights, begin mass deportations, purge the federal government and fill it with loyalists, and on, and on, and on, and on, and he's been slowly but steadily gaining support for a month.
Is there a huge, glaring double standard? Yes, absolutely. Does it matter for the blunt reality of the upcoming election? No, not at all.
Just for clarity's sake, if you watch the video, they seem pretty clearly represented as the "girls" being invaded by the "boys" ruining their sport.
"Boys in girls' bathrooms," shows picture of women's restroom, "boys in girls' sports," shows picture of girl athletes, one of them making a kind of "hmmm" face.
It's pretty ugly no matter how you slice it, but the title of the article seems to be a misinterpretation of how the image was used.