Bottom surgery is literally, definitionally, not mutilation when it’s done for a consenting adult.

If you want to call bottom surgery mutilation by your own definition, then literally every surgery is mutilation. But like, cutting out my defective heart and installing a working one, while technically “mutilating” me, is objectively a good for my health.

You can call surgery mutilation if you want, but it isn’t helpful to anyone and it only serves to make transphobes feel good about themselves.