That's not what she said. You are prone to this style of putting word in others' mouths.
What she did say, and what you have not convincingly responded to, is seeking proof (not anecdotes) that this type of behavior will become significantly more widespread or worse as a result of these changes.
It's a prediction based on available data. Data such as the deterrent effect of social norms that empower women to drive men out of their restrooms, leading to the prediction that predatory men will be less deterred if those norms are eroded. Leading also to the prediction that predatory men will be further encouraged by the criminalization of attempting to drive them out of women's restrooms.
Data such as the small increase in predatory behavior we're
already seeing, with the small advances already being made with fiat self-ID.
Of course we expect these problems to get worse, as sex-based discrimination in sex-segregated spaces becomes more and more taboo, more and more criminalized.
Just as we expect there to be more male on female rape, as more men are housed in women's prisons on nothing more than their say-so. And just as we expect more women athletes to be marginalized and their careers prematurely ended, as giving men the option to compete in women's leagues becomes more normalized.
Can you think of any plausible reason to believe these problems would
decrease, as the processes and policies that enable them are increased?
It is our fervent hope that we can halt this trend sooner rather than later,
before they produce the increased "proof" - i.e., suffering and disenfranchisement - that you're so eager to see.
You say "anecdotes". I say "case studies" and "data points". And the trend is clear. How much more sexual harassment and abuse do you need, before you decide it's time to reverse it? How much more disenfranchisement of women would it take to satisfy you that fiat self-ID is a bad idea?