Being called a slob by someone that doesn’t even know you is pretty offensive. Especially if they are trying to persuade you into thinking the same way they are thinking. If you are trying to persuade someone, I wouldn’t call them something some people aren’t. Abbey your words are ineffective for reaching your audience because you said that your argument appealed to the wheelchair ethos of the wealthy, upper-middle-class American slob. You are insulting people that actually need wheelchairs. This approach makes people angry and are less likely to convince them. Everything was going fine, up until that part. You could either change that word or eliminate that sentence. It’s a better choice because it will cause less people to get angry,