This illustrates the safeguarding risk in allowing males to use female spaces on the basis of simply saying that they identify as female. It ends up with situations like this: a registered sex offender pleasuring his erect penis in a shower area that young girls are using, and a reluctance of the authorities to stop him and file charges because they're in the thrall of policy that deems self-declared gender identity to be unquestionable.

> are you suggesting that if you can find one male sexual predator, it justifies equating all males with predators

For the purposes of safeguarding, yes. This is much of the reason why we have female-only spaces in the first place, as a preventative against male predation.

Not all males are predatory, but one can be quite sure that the subset of males who disregard and ignore women's and girls' boundaries are. Including the sex offender being discussed in that Twitter conversation. And any other male who demands access to female spaces.