I watched part of the video. The dismissive, accusatory tone - 'those people' and 'do you know what you've done?' or similar was rather unpleasant, but despite that, I have to say, it made me smile.
Maddy, I don't know how old you are, but how on earth do you think things worked in, for example, the 80s, 90s and 00s (in which, perhaps not co-incidentally, gender non-conforming women and men were, arguably, far more common - females with short hair, and males with nail varnish and make-up)? None of the dystopian nonsense this video envisages was the case then, and there's no reason there should be such now.
One thing, and one thing only has changed between then and now, and that is the re-conception of what it means to be a woman by those such as this video-maker and yourself. Back then, the social consensus that there are 2 sexes and that 99.99% of the time we can all tell the difference between them, meant toilet use was perfectly straightforward. Better still, that same consensus about sex enabled greater acceptance of gender non-conformity, with an understanding that both sexes could present as more/less masculine/feminine, and this wouldn't affect the spaces they'd use. Lastly, the collective confidence in that consensus enabled a far more relaxed attitude towards variation in outward appearance, meaning that people were often more chilled than they are now about a minority of outliers - those with DSDs and transwomen - using the spaces they felt were best for them.
Back when these spaces were accepted as being there to accommodate a physical body type, there was no confusion or uncertainty. It's activists like you that have insisted on a re-evaluation of who should/shouldn't be denied entry based on arbitrary values best described as the outward appearance of masculinity and femininity (values previously seen as nebulous and regressive) that have brought about this situation.
To accuse women who are seeking to re-establish the straightforward, fully-functioning status quo of earlier years as encouraging policing of external appearance (in some comical dystopian vision of inspectors and paperwork, what's more) is ironic beyond belief.
You did this to yourselves.
Some days I find it infuriating - today, it honestly feels genuinely funny.