Bullying is AFAIK based on perceived weakness, being a good victim candidate. Granted, being "weird" and thus seen as not having many allies, easy to single out, is a perceived weakness. Still I would probably tackle the problem by other means (like convincing ginger kids to always protect each other). Deafness is clearly a defect, I don't really care about the deaf hamstering about how it is a culture. It is a culture made to deal with a defect, and as such it is a very respectable one, but it is just like the culture of grieving, if we become immortal we will not miss spectacular tombstones.

But sure on the meta level I do agree not all people will agree with me here. But there is an obvious solution of leaving the corner cases to the parents jurisdiction.

What I would want to avoid is arms races really. Such as in height (being important for the sex appeal of men).