I feel I don't want to change how I describe disabled people
Are you for real? Why do you feel like you can be rude in describing disabled people?
I don't know, they are ugly and I'm going to say it publicly
It is rude and insensitive to describe disabled people in a derogatory way. Even if you think you shouldn't have to change the way you talk, you should consider the feelings of others. You would be offended if people called you ugly, so don't say that about others.
What is wrong with you ! It's just a word.
Words do matter and they do hurt and can cut like a razor. Why hurt people that you don't even know because it seems like a waste of your precious time? You are better off articulating and educating people on social media about cars and other stuff that you know so well.