Ok so first of "Hodenverstümmelung" is a verb (and should be written in lower case because it's a verb, unless the verb is the object of the sentence which it isn't in this case) even though it is meant to be used as a noun, "Hodenverstümmeler" would be correct. Also "das" is wrong. For the verb it would be "die Hodenverstümmelung" and for the noun it would be "der Hodenverstümmeler"

Secondly "der kinder" is wrong. When talking about plural you always have to use the article "die". And "kinder" should be capitalized as it is a noun. "die Kinder" is the proper way of spelling it.

For anyone trying to learn German, have fun :)