"Your disability doesn't define you" argument

What do you guys think about the "your disability doesn't define you" argument/mentality? Please leave your thoughts in the comments.

Personally I dislike this line of thinking. I have been born with this disorder and will live out the rest of my life with it. It impacts my drinking, sleeping and driving habits and has far reaching affects like my mood. It has implicitly impacted and defined my life whether I was aware of it or not. And I've come to terms with it. It's a hard pill to swallow but it's linked to my body the same way my teeth are to my gums. And the same as how my teeth need to be brushed twice a day to prevent them from becoming rotten, this defining stuff like diet epilepsy needs meds to prevent it becoming worse. It's a part of me and will define part of my daily habits but will not become my entire life. I think that's the key distinction.