Exactly, the problem with being blind is that you can't see, not that people use the word jokingly, or as an accusation. Even if we completely stop doing those

Exactly, the problem with being blind is that you can't see, not that people use the word jokingly, or as an accusation. Even if we completely stop doing those things, and keep coming up with new euphemisms for blindness ("differently sighted" anyone?) the main issue will remain: some individuals are not able to see.