Honestly, someone determined to gain access to and install recording devices is disgusting enough that they wouldn't be deterred or encouraged by this legislation. At worst, they'd use this legislation to try and protect themselves if caught, but if they're seen with recording equipment in hand, it wouldn't go far.

The data suggests that most people who identify as trans want bathroom or locker room access not in order for rape or voyeurism, but rather to use the women present for sexual thrills, simply by their presence alone. The trans community would generally refer to this as validation, but it's basically them getting sexual thrills from forcing other women to acknowledge their presence and tolerate men in their presence as "women". From the article on Autogynephilia by Sue Donym (since banned from Medium.com but reposted here): https://grahamlinehan.substack.com/p/the-elephant-in-the-room

“Others were sexually excited by the idea of being with other women in a gym or locker room and feeling as though they genuinely belonged or deserved to be there. Here are two representative examples:

“I started hormones about 6 months ago and am awaiting approval for sex reassignment surgery. The most sexually exciting thing about being a woman is fitting in as a woman and finally feeling I have a place to belong. I often fantasize being postoperative and being able to go to the gym and finally being able to shower with other women after having a nice workout. I am really turned on by the idea of going into the women’s shower and being surrounded by femaleness and of just being able to legally belong in the women’s restroom. What I’m saying is that to truly fit in as another woman in these places means a great deal sexually to me.”

After reading about autogynephilia, I think that I have come a long way in understanding myself and my motivations and desires. Most of my early masturbatory fantasies involved being transformed into a woman and living as a woman. I don’t really care about the clothes. It is about being able to see myself as a woman or at least with feminine qualities. My most enjoyable moments are imagining experiencing the more tame parts of life as a woman (e.g., playing golf, going to the women’s room or locker room, being able to shop for feminine clothes and shoes, and being seen as a woman.) The few times I have been in a women’s locker room have been overwhelming. The smell is so inspiring and alluring and the idea of being able to go there and be accepted as a woman — I certainly can understand why people go completely through the surgery”

It is important to emphasize that the narratives that mentioned wanting to be with other women in a gym or locker room never carried overtly voyeuristic overtones. What was arousing to the informants was being accepted as a woman by other women, not the opportunity to view nude or scantily clothed female bodies. In fact, one informant explained that experiencing the absence of male-typical feelings was what made the locker room scenario arousing:

I am deeply aroused by the idea of being in a locker room with other women and having no male sexual feelings.

This is all sufficiently rape-y that I don't think the scenario of literally being assaulted in a bathroom even needs to be mentioned to argue against men who identify as women being allowed access to women's toilets. Being used as an unwilling tool in someone else's sexual fantasies by being forced to tolerate their presence in your personal space is sufficiently abhorrent that women should be allowed to maintain sex segregated spaces.

The pushback against TRAs demanding access to bathrooms has never been about the idea that all trans people using bathrooms would be literal rapists, that's just a strawman the TRA community wants to be able to burn down without responding to the real concerns about autogynephiles using their access to women's spaces to get off on making women validate their presence.