Throughout history, the act of castration has been framed through lenses of devotion and sacrifice.
Outside of erotica, similar phrasing sometimes appears in academic or artistic discussions:
In this sense, castration can be viewed as a form of ultimate sacrifice, where an individual is willing to give up their own desires, fertility, or even their very life force, for the benefit of another. This sacrifice can take many forms, from the practical benefits of preventing overpopulation to the more spiritual benefits of transcending worldly desires.
You can elevate the topic by linking it to broader critiques of modern relationships.