I'm going to ignore a person with disabilities
That feels rude. Why do you need to ignore them?
Yes, I hate everything about them
You have the right to ignore a person, even with a disability, but hate is a strong term that I do not think you really mean for them as you may not have gotten to know them. Are you being bothered by that person that you are evoking such strong anger towards them?
Not exactly. They're just annoying, I don't have time for that.
If you're being annoyed then you can ignore the person and mind your own business. If this person is constantly bothering you, then you should report them to someone in charge so that they would stop. I do hope you be more understanding of people with disabilities moving forward and try to be more patient with them.