I disagree, and I think a lot of people with so-called disabilities would too. Disability is a state of mind - this is why the term 'differently abled' came into existence. In other words "disabled" says "I can't do things", but "differently abled" says "I do things differently.

It's essentially the same reason that the term "invalid" is no longer used much.

Try asking someone who has had both legs amputated but runs fast enough that he wants to be allowed to compete at Olympic level if he is disabled.

For another example, I have full grand-mal epilepsy, and could probably be 'declared to be disabled' if I chose to go down that road. But I do not consider myself disabled - it's just a chronic condition I live with.