They’re in very real danger of opening up a path to the very opposite thing they want to achieve. Aren’t they?
As far as I can see, yes. The danger zone is far clearer than whatever they were trying to allege about "abortion rights".
They're arguing that parents can determine what treatment their child should get.
Gillick was about parents not having the right to determine what treatment their child should not get.
Totally different thing. Somehow. If I squint.
And they're saying it's not a problem that a child can't legally consent, because the child is saying they want it. The child isn't actually saying "no", so everyone - parent, child and doctors agrees to do this. Okay, we're compelling the doctors too. But everyone agrees - the parents, the legally-incapable-of-consent child, and the coerced doctors.
Sounds great. Let's get down and do this.
(Is a child not saying "no", or the parent being involved, any sort of defence in other inability-to-consent situation, btw?)