I don't know how it is in other countries, but in the US, restroom usage has been the subject of serious legislature for a long time now. It was a talking point of segregation. Now it's a talking point regarding transgender people.
It has never really been about the restrooms. The restrooms are a proxy for a broader culture war. There are a few people who are genuinely disgusted by indirectly contacting people who are different from them, either by using the same toilets or simply by passing by them, and they're often catered to in order to help spearhead these issues.
The idea, I think, is more about overwhelming the public with consistent racist and transphobic narratives in order to normalize these subjects. While the restroom bills might fail to be passed, whether they passed or not was never of serious concern. They're meant more as a performance for hate.
If they pass, all it means is they're doing even better than they were reasonably hoping to, and it opens the door to push more extreme laws now that the Overton Window has shifted in favor of them. On the other hand, if these matters stay absurd, then we've still given an avenue for bigots to rally behind and connect with one another.
So there is a bit of counter-propaganda to highlighting how ridiculous these bills and the concern surrounding them are, as a way to inoculate against these political tactics. It's a form of damage control mixed with a call to action.
Which means that keyboard warriors have to talk about the restrooms because it's the newest hot topic battleground. Maybe some genuine activism could come out of it. Really, I think people feel an emotional need to vent and argue about it on both sides of the issue; any political consequences of these discussions are minute and secondary to trying to feel like one has some control over the discourse. So they start their own threads, of varying quality.
