I was at whole foods the other day and they were throwing away all the vegetables that had gone bad. I went in the back and got like 4 free wheelchairs.
You think making vegetable jokes about wheelchair users is humorous?
I'm joking. It's just a joke.
Disabled people have mental capacity just like you and I and your characterization of them as being "vegetable-like" is a misrepresentation. Go out and spend some time with the physically disabled and your tune will change for the better.