I exist on the grey area of disability, the part where things are neither black nor white. I am neither wholly visibly disabled, nor wholly invisibly disabled. I walk on my own, and yet, I use a wheelchair. More people are with me in the grey area than you think. Not everything is black and white. And that is the core of disability binarism - the concept that things are all or nothing - you are either low-functioning or high functioning. You're either "wheelchair bound" or you can walk. You're either totally deaf, or you hear fine. Get the picture?
Disability binarism p*sses me off.