What's ridiculous is the claim that unconditional love requires parents to consent to their children getting mastectomies when there isn't anything physically wrong with them.
Yes there is. Their gender does not match their biological sex. Preventing a transgender person from transitioning is child abuse.
How would you feel if, tomorrow, you woke up in a woman's body?
Stop throwing out the word abuse like this .
I can tell you this , I cannot see my self ever agreeing to let my child use puberty blockers or HRT and there is absolutely nothing abusive about it .
Sorry, no, but if your child comes out as trans then there is a way to react that is undeniably abusive. It is not unacceptable to want to be cautious about it on the whole. Because the various treatments aren't something to be taken likely, because of the implications about how they will be treated by the same transphobic society that you yourself are contributing to. it is OK to want to be as safe as possible, to speak to medical professionals, to make double-triple sure whatever, before moving in that sort of direction.
But to categorically say outright, no way you will ever let your child go through a medical transition, even when their gender identity is causing them long term, real suffering. Even when every single signal points in the same direction. That's just abusive. In fact it's willing to sit back and see your child suffer, even having identified the cause of their suffering, because of some culture war that you yourself have dug yourself into.
I genuinely hope that when it is someone you love, you would have the lucidity and self-awareness to see that.