I agree with Randomname234 the link in the OP has nothing to do with self ID. And we all know self ID is what this is about.
I think the obsession about men in toilets makes the GC argument look a bit odd. At the moment in order to get a GRC trans women have to prove to a gender recognition panel they have been living as a woman for two years. Therefore they are obliged by law to present as female in all walks of life... including going to the loo.
So trans women have been effectively using self ID for 14 years already in order to obtain their GRC. And there haven't been any problems.
Therefore the obsession that self ID will cause an influx of predatory males identifying as women to enter female toilets seems like bizarre paranoia. Which is a shame because there are some good GC being raised but in the end it all comes back to the toilets.
If the debate was reframed so women understood the exceptions in the Equality Act needed to be strengthened to protect women I would be all over it. I know that's not as exciting or attention grabbing as sharing a link to a bad man doing something bad in a ladies toilet but the EA actually has some bearing on women and girls.