Is a deaf person handicapped?
Yes
If they don't think so, why do you?
I work for the government , and I have seen guys who were careless about protecting their hearing from noise damage get fired , I don't have a choice , I must wear my earplugs.
It is officially a handicap.
I expect that a parent that purposefully ruined the hearing of his child would have comitted a crime.
So if the loss of a sense is not a handicap what could the definition of "handicap " be?
How diffrent is it to assult and ruin a persons hearing , than it is to make sure that they are built without it?
These guys ought to accomplish this in the usual and leagal way , loud music.