@SleepyCatten beyond a petiton, I'd instead politely ask everyone who reads this to support something more direct:
@ryanc is suing to force the issue in another way through the courts, and they need help with their fundraisers due to the personal expense it has cost them:
https://www.gofundme.com/f/legalise-nonbinary-uk-help-cover-ryans-legal-costs